Respect TTL of a DNS record for proxy config #11759

Job	Run time
lint	13m 24s
flaky-tests	14m 35s
build-ubicloud-standard-8-jdk-21-snapshot-blockhound	26m 4s
site	8m 54s
build-macos-12-jdk-21	1h 18m 1s
build-windows-latest-jdk-21	1h 6m 38s
build-ubicloud-standard-8-jdk-8	15m 51s
build-ubicloud-standard-8-jdk-11	19m 4s
build-ubicloud-standard-8-jdk-17-leak	20m 11s
build-ubicloud-standard-8-jdk-17-min-java-11	19m 13s
build-ubicloud-standard-8-jdk-17-min-java-17-coverage	24m 44s
	5h 6m 39s

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