chore: updating OwlBot.lock sha256 value to the latest (#10004)

Updating OwlBot.lock sha256 value to the latest

Author: yoshi-code-bot

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
-  digest: sha256:4875b2142cb4325542ba4f3175a81921c4b2b8256db012b220e3ca9637b34154
+  digest: sha256:fb7584f6adb3847ac480ed49a4bfe1463965026b2919a1be270e3174f3ce1191
   # created: 2023-01-20T00:00:00.000000000Z