fix syntax issues

.github/workflows/backend.yml

@@ -10,7 +10,7 @@ on:
       - "pom.xml"
 permissions:
   checks: write
-  pull-requests: write      
+  pull-requests: write
 jobs:
   build-and-test:
     runs-on: ubuntu-latest

.github/workflows/e2e-checks.yaml

@@ -9,7 +9,7 @@ on:
       - "kafka-ui-e2e-checks/**"
       - "pom.xml"
 permissions:
-  statuses: write      
+  statuses: write
 jobs:
   build-and-test:
     runs-on: ubuntu-latest