chore(deps): update actions/checkout action to v4 (#523)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/buildifier.yaml

@@ -15,6 +15,6 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: buildifier
         run: bazel run --enable_bzlmod //:buildifier.check

.github/workflows/ci.yaml

@@ -38,7 +38,7 @@ jobs:
     # Prepares the 'bazelversion' axis of the test matrix
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - id: bazel_6
         run: echo "bazelversion=$(head -n 1 .bazelversion)" >> $GITHUB_OUTPUT
       - id: bazel_7
@@ -53,7 +53,7 @@ jobs:
     # Prepares the 'os' axis of the test matrix
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - id: linux
         run: echo "os=ubuntu-latest" >> $GITHUB_OUTPUT
       - id: macos
@@ -131,7 +131,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under ${{ github.workspace }} , so your job can access it
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Mount bazel caches
         uses: actions/cache@v3

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Mount bazel caches
         uses: actions/cache@v3
         with: