Add junit.xml to gitignore #12833

Job	Run time
Check common misspellings	23s
Elixir dev dependencies	30s
Npm dependencies	32s
Elixir test dependencies	29s
Check if the regression test criteria are met, store in the job output	1s
Check if the integration test criteria are met, store in the job output	1s
Generate project documentation	0s
Npm E2E dependencies	19s
Rebuild target branch dependencies	4m 50s
Test	1m 48s
Run FE tests	1m 57s
Chromatic deployment	2m 42s
End to end tests	13m 10s
Static Code Analysis	4m 43s
Regression tests	0s
Integration tests	0s
API bc check (V1)	57s
API bc check (V2)	50s
Build the docker image for the demo environment	0s
Build and push container images	0s
Commit to OBS to generate container image	0s
Deploy updated images to the demo environment	0s
Commit to OBS to generate RPM package	0s
Use photofinish to push mock data to the demo environment	0s
	33m 12s

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