fix: give pull request write permissions to sync job (runfinch#520)

Issue #, if available:

*Description of changes:*

*Testing done:*



- [ ] I've reviewed the guidance in CONTRIBUTING.md


#### License Acceptance

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Signed-off-by: Gavin Inglis <[email protected]>

Author: ginglis13

Diff for: .github/workflows/sync-submodules-and-deps.yaml

@@ -11,6 +11,7 @@ permissions:
   # More info: https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/about-security-hardening-with-openid-connect#adding-permissions-settings
   id-token: write
   contents: write
+  pull-requests: write
 
 jobs:
   update: