Tests

Enable python external package loading by default. #11258

Job	Run time
fixup / block-fixup	6s
lint / bazel	2m 12s
labels / InternalPRRequired	1s
test (linux, ubuntu-22.04) / bazel	6m 56s
test (linux, ubuntu-22.04, -asan) / bazel	3m 13s
test (linux, ubuntu-22.04, -debug) / bazel	3m 8s
test (macOS, macos-15) / bazel	7m 0s
test (windows, windows-2025) / bazel	13m 25s
	36m 1s

Provide feedback