fix(client): surface streamable HTTP request failures #2027

Job	Run time
checks / pre-commit	40s
checks / readme-snippets	11s
checks / test (3.11, locked, windows-latest)	2m 35s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.10, locked, ubuntu-latest)	52s
checks / test (3.11, lowest-direct, windows-latest)	2m 21s
checks / test (3.10, lowest-direct, ubuntu-latest)	54s
checks / test (3.10, locked, windows-latest)	2m 12s
checks / test (3.12, locked, ubuntu-latest)	51s
checks / test (3.11, locked, ubuntu-latest)	53s
checks / test (3.10, lowest-direct, windows-latest)	3m 22s
checks / test (3.12, lowest-direct, windows-latest)	3m 34s
checks / test (3.14, lowest-direct, windows-latest)	1m 54s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 27s
checks / test (3.12, locked, windows-latest)	3m 35s
checks / test (3.13, locked, ubuntu-latest)	52s
checks / test (3.13, locked, windows-latest)	2m 41s
checks / test (3.13, lowest-direct, windows-latest)	2m 30s
checks / test (3.14, locked, windows-latest)	3m 22s
checks / test (3.14, locked, ubuntu-latest)	2m 22s
checks / test (3.13, lowest-direct, ubuntu-latest)	53s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 2s
all-green	2s
	40m 5s

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