HDFS-16449. Fix hadoop web site release notes and changelog not available

[GuoPhilipse]

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 57s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	yamllint	0m 0s		yamllint was not available.
+0 🆗	markdownlint	0m 0s		markdownlint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ trunk Compile Tests _
+0 🆗	mvndep	12m 27s		Maven dependency ordering for branch
+1 💚	mvninstall	26m 49s		trunk passed
+1 💚	mvnsite	34m 2s		trunk passed
+1 💚	shadedclient	96m 22s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 26s		Maven dependency ordering for patch
+1 💚	mvninstall	25m 43s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	21m 45s		the patch passed
+1 💚	shadedclient	44m 17s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	asflicense	0m 38s		The patch does not generate ASF License warnings.
		169m 51s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3967/1/artifact/out/Dockerfile
GITHUB PR	#3967
Optional Tests	dupname asflicense codespell yamllint mvnsite markdownlint
uname	Linux 3a54dcc56a67 4.15.0-162-generic #170-Ubuntu SMP Mon Oct 18 11:38:05 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / c801493
Max. process+thread count	575 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common . U: .
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3967/1/console
versions	git=2.25.1 maven=3.6.3
Powered by	Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org

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[aajisaka]

LGTM

[ayushtkn]

+1

[aajisaka]

Merged. Thank you @GuoPhilipse and @ayushtkn