Merge pull request #133 from jongwooo/chore/replace-deprecated-comman…

…d-with-environment-file

Replace deprecated command with environment file

.github/workflows/chart-lint-test.yml

@@ -41,7 +41,7 @@ jobs:
         run: |
           changed=$(ct list-changed --config ct.yaml)
           if [[ -n "$changed" ]]; then
-            echo "::set-output name=changed::true"
+            echo "changed=true" >> $GITHUB_OUTPUT
           fi
 
       - name: Run chart-testing (lint)