fix: correct Context type parameters across examples and tests (#2256) #1374

Job	Run time
checks / pre-commit	41s
checks / readme-snippets	13s
checks / test (3.11, lowest-direct, ubuntu-latest)	59s
checks / test (3.10, lowest-direct, windows-latest)	2m 35s
checks / test (3.10, locked, ubuntu-latest)	51s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.13, locked, windows-latest)	2m 50s
checks / test (3.13, lowest-direct, ubuntu-latest)	53s
checks / test (3.13, lowest-direct, windows-latest)	2m 52s
checks / test (3.10, lowest-direct, ubuntu-latest)	59s
checks / test (3.10, locked, windows-latest)	2m 35s
checks / test (3.11, locked, windows-latest)	2m 32s
checks / test (3.12, lowest-direct, windows-latest)	4m 16s
checks / test (3.13, locked, ubuntu-latest)	49s
checks / test (3.14, locked, ubuntu-latest)	2m 27s
checks / test (3.12, locked, windows-latest)	3m 29s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.14, lowest-direct, windows-latest)	2m 37s
checks / test (3.11, locked, ubuntu-latest)	53s
checks / test (3.12, locked, ubuntu-latest)	1m 1s
checks / test (3.14, locked, windows-latest)	3m 17s
checks / test (3.11, lowest-direct, windows-latest)	2m 40s
all-green	4s
	41m 55s

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