.github: restrict codecov in UI build to apache/cloudstack repo

[weizhouapache]

Description

This PR fixes github action "UI Build" by restricting the codecov job to apache/cloudstack repository

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• build/CI
• test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 15.18%. Comparing base (cbd2b5a) to head (784b851).
Report is 4 commits behind head on 4.19.

Additional details and impacted files

@@            Coverage Diff            @@
##               4.19   #11158   +/-   ##
=========================================
  Coverage     15.17%   15.18%           
- Complexity    11363    11367    +4     
=========================================
  Files          5416     5415    -1     
  Lines        475911   475858   -53     
  Branches      58096    58092    -4     
=========================================
+ Hits          72241    72258   +17     
+ Misses       395584   395514   -70     
  Partials       8086     8086           

Flag	Coverage Δ
uitests	4.28% <ø> (ø)
unittests	15.91% <ø> (+<0.01%)	⬆️

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