ci: add conditional execution for SBOM workflow on the main repository.

[rudrakshkarpe]

Fixes #3322

[codecov-commenter]

Codecov Report

Merging #3389 (e61f042) into main (5d9e797) will increase coverage by 0.31%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3389      +/-   ##
==========================================
+ Coverage   80.67%   80.98%   +0.31%     
==========================================
  Files         750      750              
  Lines       11534    11534              
  Branches     1560     1560              
==========================================
+ Hits         9305     9341      +36     
+ Misses       1791     1761      -30     
+ Partials      438      432       -6     

Flag	Coverage Δ
longtests	75.81% <ø> (-0.02%)	⬇️
win-longtests	78.97% <ø> (+0.31%)	⬆️

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[terriko]

Looks good, thank you! I'll fix the commit message issue reported by gitlint during merging, but if you want to get it right next time here's the convention we use: https://www.conventionalcommits.org/en/v1.0.0/

Basically it needs a prefix explaining what category the commit is in; this one changes only our a continuous integration (CI) config so it would be prefixed with "ci: "

[terriko]

(And I see now that your commit message was fine, so it was actually complaining about the PR title, which gitlint checks since that becomes the default squash commit message if a PR has more than one commit message to choose from.)

[rudrakshkarpe]

(And I see now that your commit message was fine, so it was actually complaining about the PR title, which gitlint checks since that becomes the default squash commit message if a PR has more than one commit message to choose from.)

Ohh! Noted! Thank you :)