YARN-11621: Fix intermittently failing unit test: TestAMRMProxy.testAMRMProxyTokenRenewal

[susheelgupta7]

Description of PR

How was this patch tested?

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 33s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	43m 8s		trunk passed
+1 💚	compile	0m 32s		trunk passed with JDK Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 29s		trunk passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	checkstyle	0m 30s		trunk passed
+1 💚	mvnsite	0m 34s		trunk passed
+1 💚	javadoc	0m 36s		trunk passed with JDK Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 29s		trunk passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	spotbugs	0m 56s		trunk passed
+1 💚	shadedclient	32m 40s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 24s		the patch passed
+1 💚	compile	0m 24s		the patch passed with JDK Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 24s		the patch passed
+1 💚	compile	0m 22s		the patch passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	javac	0m 22s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 17s		the patch passed
+1 💚	mvnsite	0m 25s		the patch passed
+1 💚	javadoc	0m 22s		the patch passed with JDK Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 20s		the patch passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	spotbugs	0m 56s		the patch passed
+1 💚	shadedclient	32m 1s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	28m 22s		hadoop-yarn-client in the patch passed.
+1 💚	asflicense	0m 38s		The patch does not generate ASF License warnings.
		148m 26s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6310/1/artifact/out/Dockerfile
GITHUB PR	#6310
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 27ddc97e7269 5.15.0-86-generic #96-Ubuntu SMP Wed Sep 20 08:23:49 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / d3824e1
Default Java	Private Build-1.8.0_392-8u392-ga-1~20.04-b08
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Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6310/1/testReport/
Max. process+thread count	675 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6310/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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[brumi1024]

Thanks @susheelgupta7 for the patch, @p-szucs and @slfan1989 for the review. Merging to trunk. @susheelgupta7 can you please check if this is applicable for branch-3.3/3.2?