chore: relocate owl bot post processor (#346)

* chore: relocate owl bot post processor

* chore: relocate owl bot post processor

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: SurferJeffAtGoogle

java-workflows/.github/.OwlBot.lock.yaml

@@ -1,3 +1,3 @@
 docker:
-  image: gcr.io/repo-automation-bots/owlbot-java:latest
+  image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
   digest: sha256:8c50e7bab0ae5ad41ee29420b558542637104500f6256b8fe74282b0cf6144db

java-workflows/.github/.OwlBot.yaml

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 docker:
-  image: "gcr.io/repo-automation-bots/owlbot-java:latest"
+  image: "gcr.io/cloud-devrel-public-resources/owlbot-java:latest"
 
 deep-remove-regex:
 - "/grpc-google-.*/src"