fix(hermetic-build): prevent overwrite of Version.java in new libraries' (#12742)

Applies changes found to work in
59581ef

Author: diegomarquezp

sdk-platform-java/hermetic_build/library_generation/templates/owlbot.yaml.monorepo.j2

@@ -21,7 +21,7 @@ deep-remove-regex:
 
 deep-preserve-regex:
 - "/{{ module_name }}/google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java"
-- "/{{ module_name }}/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java"
+- "/.*google-.*/src/main/java/com/google/[^/]+/.*/v.*/stub/Version.java"
 
 deep-copy-regex:
 - source: "/{{ proto_path }}/(v.*)/.*-java/proto-google-.*/src"

sdk-platform-java/hermetic_build/library_generation/tests/resources/goldens/.OwlBot-hermetic-golden.yaml

@@ -21,7 +21,7 @@ deep-remove-regex:
 
 deep-preserve-regex:
 - "/java-bare-metal-solution/google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java"
-- "/java-bare-metal-solution/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java"
+- "/.*google-.*/src/main/java/com/google/[^/]+/.*/v.*/stub/Version.java"
 
 deep-copy-regex:
 - source: "/google/cloud/baremetalsolution/(v.*)/.*-java/proto-google-.*/src"