fix(benchmark): Add permissions to benchmark workflow

Author: quevon24

.github/workflows/benchmark.yml

@@ -12,6 +12,8 @@ jobs:
     name: PR comment
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
     steps:
       #----------------------------------------------
       #       check-out repo and set-up python
@@ -159,6 +161,8 @@ jobs:
     name: Reporters-DB-Dipatch
     if: github.event_name == 'repository_dispatch'
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
     steps:
       #----------------------------------------------
       #       check-out repo and set-up python