HBASE-25684: Dependency manage log4j in hbase-connectors

[tamaashu]

Added log4j to dependencyManagement in main pom.xml

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 30s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
-0 ⚠️	test4tests	0m 0s	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ master Compile Tests _
+1 💚	mvninstall	2m 6s	master passed
+1 💚	compile	1m 10s	master passed
+1 💚	javadoc	1m 4s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	0m 57s	the patch passed
+1 💚	compile	1m 1s	the patch passed
+1 💚	javac	1m 1s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	xml	0m 2s	The patch has no ill-formed XML file.
+1 💚	javadoc	0m 57s	the patch passed
		_ Other Tests _
+1 💚	unit	7m 35s	root in the patch passed.
		17m 34s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-Connectors-PreCommit/job/PR-79/1/artifact/yetus-precommit-check/output/Dockerfile
GITHUB PR	#79
Optional Tests	dupname javac javadoc unit xml compile
uname	Linux 123f50de55a5 5.4.0-1025-aws #25~18.04.1-Ubuntu SMP Fri Sep 11 12:03:04 UTC 2020 x86_64 GNU/Linux
Build tool	hb_maven
Personality	dev-support/jenkins/hbase-personality.sh
git revision	master / 4c46a24
Default Java	Oracle Corporation-1.8.0_282-b08
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-Connectors-PreCommit/job/PR-79/1/testReport/
Max. process+thread count	923 (vs. ulimit of 12500)
modules	C: . U: .
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-Connectors-PreCommit/job/PR-79/1/console
versions	git=2.20.1
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