ci: update prmerged.yaml

Author: USERSATOSHI

.github/workflows/prmerged.yaml

@@ -28,5 +28,5 @@ jobs:
           API_URL: https://osf-api.onrender.com/api/prmerged
           API_AUTH_TOKEN: ${{ secrets.API_AUTH_TOKEN }}
         run: |
-          payload=$(echo '{"owner":"${{ steps.get-pr-data.outputs.owner }}","labels":"${{ steps.get-pr-data.outputs.labels }}","repository_name":"${{ steps.get-pr-data.outputs.repo_name }}","repository_url":"${{ steps.get-pr-data.outputs.repo_url }}"}' | jq -R -s .)
+          payload=$(echo '{"owner":"${{ steps.get-pr-data.outputs.owner }}","labels":"${{ steps.get-pr-data.outputs.labels }}","repository_name":"${{ steps.get-pr-data.outputs.repo_name }}","repository_url":"${{ steps.get-pr-data.outputs.repo_url }}"}' | jq -c --no-newline-separators .)
           curl -X POST -H "Content-Type: application/json" -H "Authorization: Bearer $API_AUTH_TOKEN" -d "$payload" "$API_URL"