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

.github/workflows/pr-checks.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           github_token: ${{ github.token }}
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       # Lint your Protobuf sources
       - uses: bufbuild/buf-lint-action@v1
         with:
@@ -32,7 +32,7 @@ jobs:
         with:
           github_token: ${{ github.token }}
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Buf format check
         run: buf format -d --exit-code
 
@@ -44,7 +44,7 @@ jobs:
         with:
           github_token: ${{ github.token }}
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       # Run breaking change detection against the last commit
       - uses: bufbuild/buf-breaking-action@v1
         with:
@@ -55,7 +55,7 @@ jobs:
   validate-schema:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       # Use ajv to validate schema
       - name: Setup node

.github/workflows/release-please.yaml

@@ -36,7 +36,7 @@ jobs:
     if: ${{ needs.release-please.outputs.releases_created && needs.release-please.outputs.buf_release_tag }}
     steps:
       # Run `git checkout`
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: ${{ needs.release-please.outputs.buf_release_tag }}
       # Install the `buf` CLI
@@ -52,7 +52,7 @@ jobs:
     if: ${{ needs.release-please.outputs.releases_created && needs.release-please.outputs.json_release_tag }}
     steps:
       # Run `git checkout`
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: ${{ needs.release-please.outputs.json_release_tag }}
       - uses: JasonEtco/create-an-issue@v2