Update dependency gflags to v2.2.2.bcr.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
gflags	bazel_dep	patch	2.2.2 → 2.2.2.bcr.1

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: MODULE.bazel.lock

Command failed: bazel mod deps --lockfile_mode=update
2026/03/26 17:29:25 Downloading https://releases.bazel.build/7.7.1/release/bazel-7.7.1-linux-x86_64...
Extracting Bazel installation...
Starting local Bazel server and connecting to it...
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WARNING: For repository 'platforms', the root module requires module version platforms@0.0.11, but got platforms@1.0.0 in the resolved dependency graph.
WARNING: For repository 'apple_support', the root module requires module version apple_support@1.24.5, but got apple_support@2.0.0 in the resolved dependency graph.
WARNING: For repository 'rules_cc', the root module requires module version rules_cc@0.0.13, but got rules_cc@0.2.16 in the resolved dependency graph.
WARNING: For repository 'rules_proto', the root module requires module version rules_proto@6.0.0.bcr.1, but got rules_proto@7.0.2 in the resolved dependency graph.
WARNING: For repository 'spdlog', the root module requires module version spdlog@1.14.1, but got spdlog@1.16.0.bcr.2 in the resolved dependency graph.
WARNING: For repository 'fmt', the root module requires module version fmt@11.0.2, but got fmt@12.1.0 in the resolved dependency graph.
WARNING: For repository 'abseil-cpp', the root module requires module version abseil-cpp@20240722.0, but got abseil-cpp@20240722.0.bcr.1 in the resolved dependency graph.
WARNING: For repository 'boost.math', the root module requires module version boost.math@1.83.0, but got boost.math@1.83.0.bcr.1 in the resolved dependency graph.
WARNING: For repository 'zlib', the root module requires module version zlib@1.3.1.bcr.3, but got zlib@1.3.1.bcr.5 in the resolved dependency graph.
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ERROR: in tag at https://bcr.bazel.build/modules/protoc-gen-validate/1.0.4/MODULE.bazel:64:10, unknown attribute name provided. Type 'bazel help mod' for syntax and help.