ci: [java] automatic kokoro label in and /gcbrun comment (#1965) #4364
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Source-Link: googleapis/synthtool@bd2bae8
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:72f0d373307d128b2cb720c5cb4d90b31f0e86529dd138c632710ae0c69efae3