Respect TTL of a DNS record for proxy config #11712

Job	Run time
lint	13m 58s
site	8m 42s
flaky-tests	9m 51s
build-ubicloud-standard-8-jdk-21-snapshot-blockhound	25m 47s
build-macos-12-jdk-21	1h 15m 44s
build-windows-latest-jdk-21	1h 7m 21s
build-ubicloud-standard-8-jdk-8	16m 11s
build-ubicloud-standard-8-jdk-11	17m 55s
build-ubicloud-standard-8-jdk-17-leak	11m 9s
build-ubicloud-standard-8-jdk-17-min-java-11	19m 58s
build-ubicloud-standard-8-jdk-17-min-java-17-coverage	21m 30s
	4h 48m 6s

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