ci(github): add jobs to verify PR labels and title

[frgfm]

This PR introduces the following modifications:

• updates labeler config
• updates release note generator
• adds CI jobs to verify labels & title of PRs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e7aeb18) 82.59% compared to head (3c8ee9a) 82.59%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #74   +/-   ##
=======================================
  Coverage   82.59%   82.59%           
=======================================
  Files          29       29           
  Lines         971      971           
=======================================
  Hits          802      802           
  Misses        169      169           

Flag	Coverage Δ
unittests	82.59% <ø> (ø)

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