Correct runner tags of test_macos_purepy_release* ci jobs (no need of macos...

Correct runner  tags of test_macos_purepy_release* ci jobs (no need of macos tag if macos_pip_pkg_tester is set).

.gitlab-ci.yml

@@ -827,7 +827,6 @@ test_macos_purepy_release: # take care to keep this variable consistent with the
     - job: pkg_macos_purepy_release
       artifacts: true
   tags:
-    - macos
     - macos_pip_pkg_tester
 
 test_macos_purepy_release_extra_pyver:
@@ -837,7 +836,6 @@ test_macos_purepy_release_extra_pyver:
     - job: pkg_macos_purepy_release_extra_pyver
       artifacts: true
   tags:
-    - macos
     - macos_pip_pkg_tester
 
 test_nux_purepy_release: