Swap to OIDC for codecovr

Author: VisruthSK

.github/workflows/test-coverage.yaml

@@ -7,7 +7,9 @@ on:
 
 name: test-coverage.yaml
 
-permissions: read-all
+permissions:
+  contents: read
+  id-token: write
 
 jobs:
   test-coverage:
@@ -45,7 +47,7 @@ jobs:
           files: ./cobertura.xml
           plugins: noop
           disable_search: true
-          token: ${{ secrets.CODECOV_TOKEN }}
+          use_oidc: true
 
       - name: Show testthat output
         if: always()