chore(deps): update actions/checkout digest to b4ffde6

Author: nextest-bot

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     env:
       RUSTFLAGS: -D warnings
     steps:
-      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
@@ -37,7 +37,7 @@ jobs:
     env:
       RUSTFLAGS: -D warnings
     steps:
-      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: dtolnay/rust-toolchain@1482605bfc5719782e1267fd0c0cc350fe7646b8 # v1
         with:
           toolchain: ${{ matrix.rust-version }}

.github/workflows/docs.yml

@@ -10,7 +10,7 @@ jobs:
     name: Build and deploy documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1
         with:
           toolchain: stable

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
     if: github.repository_owner == 'nextest-rs'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           persist-credentials: false
       - name: Install Rust