build: harden central-sync-create.yml permissions

Signed-off-by: Alex <[email protected]>

Author: sashashura

.github/workflows/central-sync-create.yml

@@ -10,6 +10,9 @@ on:
         description: "Artifactory build number"
         required: true
 
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
 jobs:
   build:
     runs-on: ubuntu-latest