fix(java-managed-identities): fix copy rules to allow generated v1beta1

Author: zhumin8

java-managed-identities/.OwlBot-hermetic.yaml

@@ -24,11 +24,11 @@ deep-preserve-regex:
 - "/.*google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java"
 
 deep-copy-regex:
-- source: "/google/cloud/managedidentities/(v\\d)/.*-java/proto-google-.*/src"
+- source: "/google/cloud/managedidentities/(v.*)/.*-java/proto-google-.*/src"
   dest: "/owl-bot-staging/java-managed-identities/$1/proto-google-cloud-managed-identities-$1/src"
-- source: "/google/cloud/managedidentities/(v\\d)/.*-java/grpc-google-.*/src"
+- source: "/google/cloud/managedidentities/(v.*)/.*-java/grpc-google-.*/src"
   dest: "/owl-bot-staging/java-managed-identities/$1/grpc-google-cloud-managed-identities-$1/src"
-- source: "/google/cloud/managedidentities/(v\\d)/.*-java/gapic-google-.*/src"
+- source: "/google/cloud/managedidentities/(v.*)/.*-java/gapic-google-.*/src"
   dest: "/owl-bot-staging/java-managed-identities/$1/google-cloud-managed-identities/src"
 - source: "/google/cloud/managedidentities/(v.*)/.*-java/samples/snippets/generated"
   dest: "/owl-bot-staging/java-managed-identities/$1/samples/snippets/generated"