TEZ-4398: Gitignore pyc files

[csjuhasz-c]

No description provided.

[tez-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	15m 47s	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.
		_ master Compile Tests _
		_ Patch Compile Tests _
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
		_ Other Tests _
+1 💚	asflicense	1m 1s	The patch does not generate ASF License warnings.
		17m 30s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-199/1/artifact/out/Dockerfile
GITHUB PR	#199
JIRA Issue	TEZ-4398
Optional Tests	dupname asflicense
uname	Linux 76b9559ace21 4.15.0-163-generic #171-Ubuntu SMP Fri Nov 5 11:55:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/tez.sh
git revision	master / 3e452e9
Max. process+thread count	46 (vs. ulimit of 5500)
modules	C: . U: .
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-199/1/console
versions	git=2.25.1 maven=3.6.3
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