Run StreamableHTTP transport tests in process instead of over sockets… #2467

Job	Run time
checks / pre-commit	32s
checks / readme-snippets	13s
checks / test (3.10, lowest-direct, ubuntu-latest)	51s
checks / test (3.10, lowest-direct, windows-latest)	1m 29s
checks / test (3.12, locked, windows-latest)	1m 21s
checks / test (3.11, locked, ubuntu-latest)	50s
checks / test (3.12, lowest-direct, windows-latest)	1m 23s
checks / test (3.10, locked, windows-latest)	1m 11s
checks / test (3.13, lowest-direct, windows-latest)	1m 30s
checks / test (3.14, lowest-direct, ubuntu-latest)	51s
checks / test (3.13, locked, ubuntu-latest)	46s
checks / test (3.13, lowest-direct, ubuntu-latest)	51s
checks / test (3.14, locked, ubuntu-latest)	1m 54s
checks / test (3.11, locked, windows-latest)	1m 33s
checks / test (3.10, locked, ubuntu-latest)	53s
checks / test (3.14, lowest-direct, windows-latest)	1m 33s
checks / test (3.14, locked, windows-latest)	2m 34s
checks / test (3.11, lowest-direct, windows-latest)	1m 33s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.13, locked, windows-latest)	1m 20s
checks / test (3.11, lowest-direct, ubuntu-latest)	54s
checks / test (3.12, locked, ubuntu-latest)	54s
all-green	3s
	25m 59s

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