Update pydantic samples to use contrib module #569

# to view logs

Job	Run time
build-lint-test (3.9, ubuntu-latest)	1m 30s
build-lint-test (3.9, macos-intel)	1m 38s
build-lint-test (3.9, macos-arm)	1m 38s
build-lint-test (3.9, windows-latest)	1m 23s
build-lint-test (3.12, ubuntu-latest)	1m 26s
build-lint-test (3.12, macos-intel)	1m 38s
build-lint-test (3.12, macos-arm)	1m 19s
build-lint-test (3.12, windows-latest)	1m 29s
	12m 1s

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