fix(deps): update dependency urllib3 to v1.26.20

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
urllib3 (changelog)	==1.26.5 → ==1.26.20

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Release Notes

urllib3/urllib3 (urllib3)

v1.26.20

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====================

• Fixed a crash where certain standard library hash functions were absent in
  FIPS-compliant environments.
  (#&#8203;3432 <https://github.com/urllib3/urllib3/issues/3432>__)
• Replaced deprecated dash-separated setuptools entries in setup.cfg.
  (#&#8203;3461 <https://github.com/urllib3/urllib3/pull/3461>__)
• Took into account macOS setting ECONNRESET instead of EPROTOTYPE in
  its newer versions.
  (#&#8203;3416 <https://github.com/urllib3/urllib3/pull/3416>__)
• Backported changes to our tests and CI configuration from v2.x to support
  testing with CPython 3.12 and 3.13.
  (#&#8203;3436 <https://github.com/urllib3/urllib3/pull/3436>__)

v1.26.19

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====================

• Added the Proxy-Authorization header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect.
• Fixed handling of OpenSSL 3.2.0 new error message for misconfiguring an HTTP proxy as HTTPS. (#&#8203;3405 <https://github.com/urllib3/urllib3/issues/3405>__)

v1.26.18

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====================

• Made body stripped from HTTP requests changing the request method to GET after HTTP 303 "See Other" redirect responses.

v1.26.17

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====================

• Added the Cookie header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect. (#&#8203;3139 <https://github.com/urllib3/urllib3/pull/3139>_)

v1.26.16

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====================

• Fixed thread-safety issue where accessing a PoolManager with many distinct origins
  would cause connection pools to be closed while requests are in progress (#&#8203;2954 <https://github.com/urllib3/urllib3/pull/2954>_)

v1.26.15

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====================

• Fix socket timeout value when HTTPConnection is reused (#&#8203;2645 <https://github.com/urllib3/urllib3/issues/2645>__)
• Remove "!" character from the unreserved characters in IPv6 Zone ID parsing
  (#&#8203;2899 <https://github.com/urllib3/urllib3/issues/2899>__)
• Fix IDNA handling of '\x80' byte (#&#8203;2901 <https://github.com/urllib3/urllib3/issues/2901>__)

v1.26.14

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====================

• Fixed parsing of port 0 (zero) returning None, instead of 0. (#&#8203;2850 <https://github.com/urllib3/urllib3/issues/2850>__)
• Removed deprecated getheaders() calls in contrib module. Fixed the type hint of PoolKey.key_retries by adding bool to the union. (#&#8203;2865 <https://github.com/urllib3/urllib3/issues/2865>__)

v1.26.13

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====================

• Deprecated the HTTPResponse.getheaders() and HTTPResponse.getheader() methods.
• Fixed an issue where parsing a URL with leading zeroes in the port would be rejected
  even when the port number after removing the zeroes was valid.
• Fixed a deprecation warning when using cryptography v39.0.0.
• Removed the <4 in the Requires-Python packaging metadata field.

v1.26.12

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====================

• Deprecated the urllib3[secure] extra and the urllib3.contrib.pyopenssl module.
  Both will be removed in v2.x. See this GitHub issue <https://github.com/urllib3/urllib3/issues/2680>_
  for justification and info on how to migrate.

v1.26.11

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====================

• Fixed an issue where reading more than 2 GiB in a call to HTTPResponse.read would
  raise an OverflowError on Python 3.9 and earlier.

v1.26.10

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====================

• Removed support for Python 3.5
• Fixed an issue where a ProxyError recommending configuring the proxy as HTTP
  instead of HTTPS could appear even when an HTTPS proxy wasn't configured.

v1.26.9

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===================

• Changed urllib3[brotli] extra to favor installing Brotli libraries that are still
  receiving updates like brotli and brotlicffi instead of brotlipy.
  This change does not impact behavior of urllib3, only which dependencies are installed.
• Fixed a socket leaking when HTTPSConnection.connect() raises an exception.
• Fixed server_hostname being forwarded from PoolManager to HTTPConnectionPool
  when requesting an HTTP URL. Should only be forwarded when requesting an HTTPS URL.

v1.26.8

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===================

• Added extra message to urllib3.exceptions.ProxyError when urllib3 detects that
  a proxy is configured to use HTTPS but the proxy itself appears to only use HTTP.
• Added a mention of the size of the connection pool when discarding a connection due to the pool being full.
• Added explicit support for Python 3.11.
• Deprecated the Retry.MAX_BACKOFF class property in favor of Retry.DEFAULT_MAX_BACKOFF
  to better match the rest of the default parameter names. Retry.MAX_BACKOFF is removed in v2.0.
• Changed location of the vendored ssl.match_hostname function from urllib3.packages.ssl_match_hostname
  to urllib3.util.ssl_match_hostname to ensure Python 3.10+ compatibility after being repackaged
  by downstream distributors.
• Fixed absolute imports, all imports are now relative.

v1.26.7

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===================

• Fixed a bug with HTTPS hostname verification involving IP addresses and lack
  of SNI. (Issue #​2400)
• Fixed a bug where IPv6 braces weren't stripped during certificate hostname
  matching. (Issue #​2240)

v1.26.6

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===================

• Deprecated the urllib3.contrib.ntlmpool module. urllib3 is not able to support
  it properly due to reasons listed in this issue <https://github.com/urllib3/urllib3/issues/2282>_.
  If you are a user of this module please leave a comment.
• Changed HTTPConnection.request_chunked() to not erroneously emit multiple
  Transfer-Encoding headers in the case that one is already specified.
• Fixed typo in deprecation message to recommend Retry.DEFAULT_ALLOWED_METHODS.

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