fix usage of wrong quotes

.forgejo/workflows/publish-release.yml

@@ -74,9 +74,9 @@ jobs:
     - name: Get Release Notes
       id: releasenotes
       run: |
-        RELEASENOTES=$(sed -n '/$GITHUB_REF_NAME/,/^### /{s/$GITHUB_REF_NAME/Changelog/;/# v/d;s/###/#/;p}' README.md)
+        RELEASENOTES=$(sed -n "/$GITHUB_REF_NAME/,/^### /{s/$GITHUB_REF_NAME/Changelog/;/# v/d;s/###/#/;p}" README.md)
         echo -e "Release Notes: \n$RELEASENOTES"
-        echo "releasenotes='$RELEASENOTES'" >> $GITHUB_OUTPUT
+        echo "releasenotes=$RELEASENOTES" >> $GITHUB_OUTPUT
 
     - name: Download Binaries
       uses: actions/download-artifact@v3