Surface streamable HTTP connection errors #2342

Job	Run time
checks / pre-commit	32s
checks / readme-snippets	12s
checks / test (3.10, lowest-direct, windows-latest)	2m 23s
checks / test (3.10, locked, ubuntu-latest)	1m 2s
checks / test (3.12, lowest-direct, windows-latest)	4m 6s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 9s
checks / test (3.11, locked, ubuntu-latest)	59s
checks / test (3.10, locked, windows-latest)	2m 12s
checks / test (3.12, locked, ubuntu-latest)	1m 9s
checks / test (3.11, lowest-direct, windows-latest)	2m 36s
checks / test (3.12, locked, windows-latest)	3m 4s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 2s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.13, locked, windows-latest)	2m 23s
checks / test (3.11, locked, windows-latest)	2m 45s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 23s
checks / test (3.13, lowest-direct, windows-latest)	2m 58s
checks / test (3.14, locked, windows-latest)	3m 43s
checks / test (3.14, lowest-direct, windows-latest)	3m 3s
checks / test (3.13, locked, ubuntu-latest)	59s
checks / test (3.14, locked, ubuntu-latest)	2m 19s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 1s
all-green	5s
	42m 10s

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