fix build errors

Author: Sandip117

.github/workflows/ci.yml

@@ -72,7 +72,8 @@ jobs:
       - name: Get git tag
         id: git_info
         if: startsWith(github.ref, 'refs/tags/')
-        run: echo "::set-output name=tag::${GITHUB_REF##*/}"
+        run: echo "tag=${GITHUB_REF##*/}" >> $GITHUB_OUTPUT
+
       - name: Decide image tag name
         id: determine
         env:
@@ -83,8 +84,8 @@ jobs:
             tag="${git_tag:-latest}"
             dock_image=$repo:$tag
           echo $dock_image
-          echo "::set-output name=dock_image::$dock_image"
-          echo "::set-output name=repo::$repo"
+          echo "dock_image=$dock_image" >> $GITHUB_OUTPUT
+          echo "repo=$repo" >> $GITHUB_OUTPUT
 
       - uses: actions/checkout@v2