Release notes for 1.30.3 #11896

Job	Run time
site	6m 54s
lint	5m 18s
build-ubicloud-standard-8-jdk-21-snapshot-blockhound	24m 15s
flaky-tests	11m 29s
build-macos-latest-jdk-21	52m 48s
build-windows-latest-jdk-21	1h 0m 41s
build-ubicloud-standard-8-jdk-8	15m 13s
build-ubicloud-standard-8-jdk-11	16m 7s
build-ubicloud-standard-8-jdk-17-leak	14m 32s
build-ubicloud-standard-8-jdk-17-min-java-11	17m 59s
build-ubicloud-standard-8-jdk-17-min-java-17-coverage	23m 28s
	4h 8m 44s

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