Correct fuzz test token permission

Author: zibaiwan

.github/workflows/fuzz-test.yml

@@ -4,7 +4,7 @@ name: Runtime Fuzz Testing
 # https://github.com/ossf/scorecard/blob/2ef20f17fb2e64147c83440cd2c769653454015a/docs/checks.md#token-permissions
 permissions:
   # top-level permissions must be defined for security reasons.
-  contents: read
+  packages: read
 
 on:
   workflow_dispatch: