Fix labeler for external PR

[rflamary]

Fix right for labeling external PR

Types of changes

Motivation and context / Related issue

How has this been tested (if it applies)

PR checklist

• I have read the CONTRIBUTING document.
• The documentation is up-to-date with the changes I made (check build artifacts).
• All tests passed, and additional code has been covered with new tests.
• I have added the PR and Issue fix to the RELEASES.md file.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.06%. Comparing base (1fa685a) to head (3f94804).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #705   +/-   ##
=======================================
  Coverage   97.06%   97.06%           
=======================================
  Files          98       98           
  Lines       19955    19955           
=======================================
  Hits        19370    19370           
  Misses        585      585