CI: Only run CodeQL python if the PR contains changed files that are python

[Nancyenos]

Ticket: #7358

Make sure these boxes are checked accordingly before submitting your Pull Request -- thank you.

Contribution style:

• I have read the contributing guide lines at
  https://docs.suricata.io/en/latest/devguide/contributing/contribution-process.html

Link to ticket: https://redmine.openinfosecfoundation.org/issues/7358

Describe changes:

-Added Conditional CodeQL Python analysis: Run only when PR modifies Python files

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.95%. Comparing base (13841c0) to head (11d870f).

❗ There is a different number of reports uploaded between BASE (13841c0) and HEAD (11d870f). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (13841c0)	HEAD (11d870f)
fuzzcorpus	1	0

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #12144      +/-   ##
==========================================
- Coverage   49.77%   43.95%   -5.83%     
==========================================
  Files         909      909              
  Lines      257884   257845      -39     
==========================================
- Hits       128367   113337   -15030     
- Misses     129517   144508   +14991     

Flag	Coverage Δ
fuzzcorpus	?
livemode	19.43% <ø> (+<0.01%)	⬆️
pcap	44.38% <ø> (-0.03%)	⬇️
suricata-verify	62.70% <ø> (+0.01%)	⬆️
unittests	8.98% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests

[catenacyber]

CodeQL CPP should still have been run and it was not, right ?

[inashivb]

Philippe pointed an issue inline.

[Nancyenos]

working on it

[Nancyenos]

work continued in #12150