chore(ci): Add e2e test trigger for fork PRs

[Pijukatel]

Description

• Add e2e test trigger for fork PRs. It has to be explicitly approved

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.50%. Comparing base (809f089) to head (073796a).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1657   +/-   ##
=======================================
  Coverage   92.50%   92.50%           
=======================================
  Files         157      157           
  Lines       10439    10440    +1     
=======================================
+ Hits         9657     9658    +1     
  Misses        782      782           

Flag	Coverage Δ
unit	92.50% <ø> (+<0.01%)	⬆️

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[B4nan]

the new flow has .yaml.yml extension 🙃