Add loads for certain py/java rules #240

Job	Run time
build (ubuntu-latest, true)	1m 22s
integration-tests (ubuntu-latest, 7.4.1, true)	3m 24s
build (ubuntu-latest, false)	1m 18s
integration-tests (ubuntu-latest, 7.4.1, false)	3m 15s
build (windows-2022, true)	13s
integration-tests (ubuntu-latest, 8.0.0rc4, true)	3m 17s
integration-tests (ubuntu-latest, 8.0.0rc4, false)	5m 33s
build (windows-2022, false)	19s
integration-tests (windows-2022, 7.4.1, true)	22s
build (macos-13, true)	1m 22s
integration-tests (windows-2022, 7.4.1, false)	20s
build (macos-13, false)	1m 21s
integration-tests (windows-2022, 8.0.0rc4, true)	12s
integration-tests (windows-2022, 8.0.0rc4, false)	22s
integration-tests (macos-13, 7.4.1, true)	7m 9s
integration-tests (macos-13, 7.4.1, false)	4m 10s
integration-tests (macos-13, 8.0.0rc4, true)	4m 4s
integration-tests (macos-13, 8.0.0rc4, false)	5m 31s
	43m 34s

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