Add loads for certain py/java rules #236

Job	Run time
build (ubuntu-latest, true)	1m 24s
integration-tests (ubuntu-latest, 7.4.1, true)	48s
build (ubuntu-latest, false)	1m 8s
integration-tests (ubuntu-latest, 7.4.1, false)	41s
build (windows-2022, true)	17s
integration-tests (ubuntu-latest, 8.0.0rc4, true)	51s
build (windows-2022, false)	28s
integration-tests (ubuntu-latest, 8.0.0rc4, false)	36s
build (macos-13, true)	1m 10s
integration-tests (windows-2022, 7.4.1, true)	16s
integration-tests (windows-2022, 7.4.1, false)	16s
build (macos-13, false)	1m 13s
integration-tests (windows-2022, 8.0.0rc4, true)	13s
integration-tests (windows-2022, 8.0.0rc4, false)	15s
integration-tests (macos-13, 7.4.1, true)	41s
integration-tests (macos-13, 7.4.1, false)	44s
integration-tests (macos-13, 8.0.0rc4, true)	1s
integration-tests (macos-13, 8.0.0rc4, false)	40s
	11m 42s

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