Specify java_language_version and java_runtime_version for all Java r…

…epositories we have.

This is the default so it shouldn't change anything. However, I think we should make explicit what we support.

PiperOrigin-RevId: 627037416
Change-Id: I7e648eddf67a208a62e7c42c03c9d10890c82b3f

.bazelrc

@@ -4,3 +4,5 @@ always --noenable_bzlmod
 # `bazel build --cxxopt='-std=c++<XY>' --host_cxxopt='c++<XY>' ...`
 # (Both -std and --host_cxxopt must be set to force the desired version.)
 build --cxxopt='-std=c++17' --host_cxxopt='-std=c++17'
+build --java_language_version=8
+build --java_runtime_version=local_jdk