fix(client): surface streamable http transport errors #2691

Job	Run time
checks / readme-snippets	13s
checks / pre-commit	38s
checks / test (3.11, lowest-direct, windows-latest)	1m 18s
checks / test (3.10, locked, windows-latest)	1m 8s
checks / test (3.12, locked, windows-latest)	1m 17s
checks / test (3.14, locked, windows-latest)	2m 30s
checks / test (3.14, lowest-direct, windows-latest)	1m 16s
checks / test (3.10, locked, ubuntu-latest)	46s
checks / test (3.13, lowest-direct, ubuntu-latest)	46s
checks / test (3.13, locked, ubuntu-latest)	47s
checks / test (3.12, lowest-direct, windows-latest)	1m 19s
checks / test (3.13, lowest-direct, windows-latest)	1m 55s
checks / test (3.12, locked, ubuntu-latest)	49s
checks / test (3.14, locked, ubuntu-latest)	1m 53s
checks / test (3.11, lowest-direct, ubuntu-latest)	49s
checks / test (3.13, locked, windows-latest)	1m 35s
checks / test (3.10, lowest-direct, windows-latest)	1m 18s
checks / test (3.14, lowest-direct, ubuntu-latest)	46s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.10, lowest-direct, ubuntu-latest)	48s
checks / test (3.11, locked, ubuntu-latest)	51s
checks / test (3.11, locked, windows-latest)	1m 30s
all-green	3s
	25m 16s

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