Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/rust.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
     - name: Build
       run: cargo build --verbose
     - name: Run tests