Tests

Ask Claude to implement `encodeResponseBody: "manual"` option. #12556

Job	Run time
labels / InternalPRRequired	2s
fixup / block-fixup	7s
lint / bazel	8m 35s
test (macOS, macos-15) / bazel	10m 27s
test (linux, ubuntu-22.04) / bazel	9m 19s
test (windows, windows-2025) / bazel	25m 31s
test (linux-arm, ubuntu-22.04-arm, -debug) / bazel	9m 30s
test (linux, ubuntu-22.04, -asan) / bazel	14m 5s
test (linux-arm, ubuntu-22.04-arm) / bazel	17m 16s
Run workers-sdk tests	4m 48s
	1h 39m 40s

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