Output clang-format issues in job

Summary

This MR:

• Outputs the clang-format output in the job logs (so that you don't have to always click on the artifacts to see the differences)
• Changes the extension from .out to .diff (as it's outputting a diff file)
• Reduces the amount of stuff git fetch fetches

Additional Required Actions

• Requires manual tests in pre-production: NO
• Requires a documentation update: NO

References

Closes #973 (closed)

added Continuous Integration ci: pipeline typemaintenance labels

assigned to @nbugel

added 1 commit

• 531a5876 - Added output of clang format to job logs and improved git fetch behaviour

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• e021fac2 - Fixed missing then statement

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• f65cacbe - Syntax fix

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• eff93b0e - Test clang format error

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• 217c35e4 - Used tee instead

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• 1096b9d7 - test with diff file

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• ade41f1f - test with direct output

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• 7f228fb8 - test with git apply

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• b2576dfd - removed unknown option

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• 6be6ced5 - test with bat(man)

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• edb2feee - Install fix

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• 23f13d2e - Removed a bit too much

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added workflowin progress label

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• 7ad6fdf5 - ensured proper exit

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• a79b2a11 - Inverse condition

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• 573ca845 - Revert "Test clang format error"

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• dbdf9d84 - Fixed success check

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• 25eb330a - Syntax error fix

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