Surface streamable HTTP connection errors #2343

Job	Run time
checks / pre-commit	39s
checks / readme-snippets	14s
checks / test (3.13, locked, ubuntu-latest)	59s
checks / test (3.10, locked, ubuntu-latest)	1m 3s
checks / test (3.13, lowest-direct, windows-latest)	2m 56s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.13, locked, windows-latest)	3m 4s
checks / test (3.10, lowest-direct, windows-latest)	2m 20s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 2s
checks / test (3.10, locked, windows-latest)	2m 49s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 6s
checks / test (3.11, locked, windows-latest)	2m 17s
checks / test (3.11, lowest-direct, windows-latest)	2m 55s
checks / test (3.12, locked, windows-latest)	3m 23s
checks / test (3.12, locked, ubuntu-latest)	1m 3s
checks / test (3.12, lowest-direct, windows-latest)	3m 40s
checks / test (3.14, lowest-direct, windows-latest)	2m 51s
checks / test (3.11, locked, ubuntu-latest)	58s
checks / test (3.14, locked, windows-latest)	4m 3s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.14, locked, ubuntu-latest)	2m 30s
all-green	5s
	43m 20s

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