HADOOP-16562. [pb-upgrade] Update docker image to have 3.7.1 protoc executable

[vinayakumarb]

No description provided.

[hadoop-yetus]

(!) A patch to the testing environment has been detected.
Re-executing against the patched versions to perform further tests.
The console is at https://builds.apache.org/job/hadoop-multibranch/job/PR-1429/1/console in case of problems.

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	75	Docker mode activated.
		_ Prechecks _
+1	dupname	0	No case conflicting files found.
0	shelldocs	1	Shelldocs was not available.
+1	@author	0	The patch does not contain any @author tags.
		_ trunk Compile Tests _
+1	shadedclient	862	branch has no errors when building and testing our client artifacts.
		_ Patch Compile Tests _
+1	hadolint	3	There were no new hadolint issues.
+1	shellcheck	0	There were no new shellcheck issues.
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedclient	852	patch has no errors when building and testing our client artifacts.
		_ Other Tests _
+1	asflicense	30	The patch does not generate ASF License warnings.
		1942

Subsystem	Report/Notes
Docker	Client=19.03.2 Server=19.03.2 base: https://builds.apache.org/job/hadoop-multibranch/job/PR-1429/1/artifact/out/Dockerfile
GITHUB PR	#1429
Optional Tests	dupname asflicense hadolint shellcheck shelldocs
uname	Linux 70fb5cb64b52 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/hadoop.sh
git revision	trunk / 44850f6
Max. process+thread count	309 (vs. ulimit of 5500)
modules	C: . U: .
Console output	https://builds.apache.org/job/hadoop-multibranch/job/PR-1429/1/console
versions	git=2.7.4 maven=3.3.9 shellcheck=0.4.6 hadolint=1.11.1-0-g0e692dd
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[brahmareddybattula]

+1