Move java_stub_template.txt out of Bazel and into @rules_java

The copy in Bazel can be deleted once we update Bazel to a `rules_java` version containing this change.

PiperOrigin-RevId: 715357586
Change-Id: I14878f635aad7270854d7bcc29c05de9bff8af87

Author: hvadehra

java/bazel/rules/bazel_java_binary.bzl

@@ -363,7 +363,7 @@ def make_java_binary(executable):
 </p>
 <p>
   The wrapper script accepts several unique flags. Refer to
-  <code>//src/main/java/com/google/devtools/build/lib/bazel/rules/java/java_stub_template.txt</code>
+  <code>java_stub_template.txt</code>
   for a list of configurable flags and environment variables accepted by the wrapper.
 </p>