Update ccpp.yml

.github/workflows/ccpp.yml

@@ -77,7 +77,7 @@ jobs:
       if: endsWith(matrix.name,'latest-gcov')
       run: |
         pip install --user cpp-coveralls
-        run: echo "::set-output name=args::-ASSIMP_COVERALLS=1"
+        echo "::set-output name=args::-ASSIMP_COVERALLS=1"
       
     - name: Remove contrib directory for Hunter builds
       if: contains(matrix.name, 'hunter')