Add more jaeger spans in Python setup #10246

Job	Run time
fixup / block-fixup	10s
labels / InternalPRRequired	1s
lint / bazel	3m 17s
test (linux, ubuntu-20.04) / bazel	5m 7s
test (linux, ubuntu-20.04, -asan) / bazel	4m 22s
test (linux, ubuntu-20.04, -debug) / bazel	5m 27s
test (macOS, macos-15) / bazel	6m 41s
test (windows, windows-2022) / bazel	18m 10s
	43m 15s

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