feat: Add protocol_version parameter to ClientSession #1538

Job	Run time
checks / pre-commit	16s
checks / readme-snippets	12s
checks / test (3.11, locked, windows-latest)	2m 37s
checks / test (3.10, locked, ubuntu-latest)	52s
checks / test (3.10, lowest-direct, ubuntu-latest)	54s
checks / test (3.12, locked, ubuntu-latest)	56s
checks / test (3.13, locked, windows-latest)	2m 52s
checks / test (3.12, locked, windows-latest)	3m 4s
checks / test (3.14, locked, windows-latest)	3m 17s
checks / test (3.14, lowest-direct, windows-latest)	2m 24s
checks / test (3.11, locked, ubuntu-latest)	52s
checks / test (3.13, lowest-direct, ubuntu-latest)	47s
checks / test (3.10, lowest-direct, windows-latest)	2m 16s
checks / test (3.12, lowest-direct, ubuntu-latest)	55s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.11, lowest-direct, windows-latest)	2m 20s
checks / test (3.14, locked, ubuntu-latest)	2m 16s
checks / test (3.13, locked, ubuntu-latest)	44s
checks / test (3.12, lowest-direct, windows-latest)	3m 17s
checks / test (3.13, lowest-direct, windows-latest)	2m 19s
checks / test (3.11, lowest-direct, ubuntu-latest)	55s
checks / test (3.10, locked, windows-latest)	2m 1s
all-green	4s
	37m 15s

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