Release rules_java v7.8.0

Copybara Import from https://github.com/bazelbuild/rules_java/pull/200

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Release rules_java v7.8.0 (#200)

https://github.com/bazelbuild/rules_java/issues/199

Closes #200
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COPYBARA_INTEGRATE_REVIEW=https://github.com/bazelbuild/rules_java/pull/200 from bazelbuild:keertk-patch-2 9ab5a8a99690814f3df0b41f1265ae933c0fdaf9
PiperOrigin-RevId: 654736163
Change-Id: Ib3c71c19f96074ae4dcf7984d127be7505b6d5b4