Release rules_java v7.9.1

Copybara Import from https://github.com/bazelbuild/rules_java/pull/208

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Release rules_java v7.9.1 (#208)

https://github.com/bazelbuild/rules_java/issues/207

Closes #208
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COPYBARA_INTEGRATE_REVIEW=https://github.com/bazelbuild/rules_java/pull/208 from bazelbuild:keertk-patch-4 b551c835fdf9c99c1b3f9ba20ff14bd0e0daec4f
PiperOrigin-RevId: 669326485
Change-Id: I9fbba75328f040d796f35c11bcd39ada0e7e0c35