[REL] fix workflow

Author: mass1ve-err0r

.github/workflows/build.yml

@@ -22,8 +22,10 @@ jobs:
           COMMIT_MSG=$(git log -1 --pretty=format:%s)
           if [[ "$COMMIT_MSG" == "[REL]"* ]]; then
             echo "run_build=true" >> $GITHUB_ENV
+            echo "::set-output name=run_build::true"
           else
             echo "run_build=false" >> $GITHUB_ENV
+            echo "::set-output name=run_build::false"
           fi
 
       - name: Debug Output