Revert permissions changes to rust-toolchain-update.yml

Author: BYK

.github/workflows/rust-toolchain-update.yml

@@ -5,10 +5,6 @@ on:
     # Run weekly on Mondays at 00:00 UTC
     - cron: '0 0 * * 1'
 
-permissions:
-  contents: write
-  pull-requests: write
-
 jobs:
   check-and-update:
     name: Check for Rust toolchain updates
@@ -21,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6 # 6.0.1
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # 6.0.1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}