Update maven-publish.yml

Granting contents:write permission to allow release:perform step to commit to repo

Author: jimbethancourt

.github/workflows/maven-publish.yml

@@ -11,6 +11,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
 
+    permissions:
+      contents: write
+
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v3