HADOOP-18334. Fix create-release to address removal of GPG_AGENT_INFO in branch-3.2.

[iwasakims]

https://issues.apache.org/jira/browse/HADOOP-18334

gpg v2.1 and above does not export GPG_AGENT_INFO. create-release script need to export the info by itself to make --sign work. It was addressed as part of HADOOP-16797 in branch-3.3 and trunk. Since we can not backport aarch64 support to branch-3.2, I filed this issue for branch-3.2 only.

[iwasakims]

looks working in branch-3.2.

$ dev-support/bin/create-release --asfrelease --docker --dockercache
...(snip)
============================================================================
============================================================================
                          Hadoop Release Creator
============================================================================
============================================================================


Version to create      : 3.2.5-SNAPSHOT
Release Candidate Label:
Source Version         : 3.2.5-SNAPSHOT


starting gpg agent
Warming the gpg-agent cache prior to calling maven
$ cd /build/source

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	5m 38s		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.
+0 🆗	shelldocs	0m 0s		Shelldocs was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ branch-3.2 Compile Tests _
+0 🆗	mvndep	4m 58s		Maven dependency ordering for branch
+1 💚	shadedclient	18m 5s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 22s		Maven dependency ordering for patch
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	shellcheck	0m 1s		No new issues.
+1 💚	shadedclient	14m 19s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	asflicense	0m 47s		The patch does not generate ASF License warnings.
		46m 23s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4554/1/artifact/out/Dockerfile
GITHUB PR	#4554
Optional Tests	dupname asflicense codespell detsecrets shellcheck shelldocs
uname	Linux 34bd0b55104d 4.15.0-169-generic #177-Ubuntu SMP Thu Feb 3 10:50:38 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	branch-3.2 / c9a4cb1
Max. process+thread count	400 (vs. ulimit of 5500)
modules	C: U:
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4554/1/console
versions	git=2.17.1 maven=3.6.0 shellcheck=0.4.6
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[steveloughran]

+1

[iwasakims]

Thanks, @ashutoshcipher and @steveloughran. I merged this to branch-3.2 and branch-3.2.4.