Merge pull request #3620 from rust-lang/renovate/actions-checkout-digest

Update actions/checkout digest to 0ad4b8f

Author: ehuss

.github/workflows/deploy.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
       with:
         fetch-depth: 0
     - name: Install mdbook