ci: repair checkout workspace without sudo

Author: MoozIiSP

.github/workflows/BPI-R4-Minimal-MTK-Bootloader-Test.yml

@@ -25,8 +25,8 @@ jobs:
     steps:
       - name: Repair workspace permissions
         run: |
-          sudo mkdir -p "$GITHUB_WORKSPACE"
-          sudo chown -R "$(id -u):$(id -g)" "$GITHUB_WORKSPACE"
+          mkdir -p "$GITHUB_WORKSPACE"
+          podman unshare chown -R "$(id -u):$(id -g)" "$GITHUB_WORKSPACE"
 
       - name: Checkout
         uses: actions/checkout@v4