ci: run gitlint on PR title

[rhythmrx9]

closes #1596

[codecov-commenter]

Codecov Report

Merging #1597 (2e5bfae) into main (9c73442) will decrease coverage by 1.92%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1597      +/-   ##
==========================================
- Coverage   83.59%   81.66%   -1.93%     
==========================================
  Files         290      290              
  Lines        5771     5771              
  Branches      949      949              
==========================================
- Hits         4824     4713     -111     
- Misses        730      837     +107     
- Partials      217      221       +4     

Flag	Coverage Δ
longtests	81.66% <ø> (-1.93%)	⬇️

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

Impacted Files	Coverage Δ
cve_bin_tool/checkers/xml2.py	61.36% <0.00%> (-27.28%)	⬇️
test/test_json.py	70.00% <0.00%> (-20.00%)	⬇️
cve_bin_tool/cvedb.py	72.22% <0.00%> (-13.89%)	⬇️
test/test_scanner.py	62.30% <0.00%> (-12.31%)	⬇️
test/test_cli.py	82.64% <0.00%> (-10.96%)	⬇️
cve_bin_tool/checkers/glibc.py	95.83% <0.00%> (-4.17%)	⬇️
cve_bin_tool/cli.py	70.79% <0.00%> (-2.22%)	⬇️
cve_bin_tool/extractor.py	63.97% <0.00%> (-1.25%)	⬇️
cve_bin_tool/version_scanner.py	76.30% <0.00%> (-0.81%)	⬇️
cve_bin_tool/available_fix/debian_cve_tracker.py	77.55% <0.00%> (+14.28%)	⬆️

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[BreadGenie]

I think we can remove line 18 & 19 safely now that we aren't bothered about commits.

[terriko]

Looks good; let's try it out!