Fix formatting in plumber.yml by adding a newline at the end of the file

Author: mcafaro

.github/workflows/plumber.yml

@@ -16,4 +16,4 @@ jobs:
       - uses: actions/checkout@v6
       - uses: getplumber/plumber@346a5299d477dc0a0e360521df7818c212bbe578
         with:
-          score-push: false
+          score-push: false