Align jar exclusions on both owners plugin build scripts

Change-Id: I5e213d4627490a45a8b56499bc53d2dd0e655d91
diff --git a/jenkins/gerrit-bazel-build-owners-plugin-branch.sh b/jenkins/gerrit-bazel-build-owners-plugin-branch.sh
index ec65fef..41c57b9 100644
--- a/jenkins/gerrit-bazel-build-owners-plugin-branch.sh
+++ b/jenkins/gerrit-bazel-build-owners-plugin-branch.sh
@@ -27,7 +27,7 @@
     bazelisk test $target/... //tools/bzl:always_pass_test
 done
 
-for JAR in $(find bazel-bin/plugins/ -name {name}*.jar)
+for JAR in $(find bazel-bin/plugins/ -name {name}*.jar | egrep -e '(stamped|tests|header)' -v)
 do
     PLUGIN_VERSION=$(git describe  --always origin/{branch})
     echo -e "Implementation-Version: $PLUGIN_VERSION" > MANIFEST.MF