chore: tag owlbot images with infrastructure-public-image- tag

Source-Link: googleapis/synthtool@b3920cd
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:88b0c493af90eae193d132adb485c018d2692cfc5e76229cf4985f58203bc8c1

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest
-  digest: sha256:5ef945dd0b346b78caabeaf973467273a31394c074f5ec3f85cb66769036bab5
-# created: 2026-02-12T15:40:42.386984339Z
+  digest: sha256:88b0c493af90eae193d132adb485c018d2692cfc5e76229cf4985f58203bc8c1
+# created: 2026-05-06T17:05:11.293079942Z