build(deps): bump actions/checkout from 4.1.7 to 4.2.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.7 to 4.2.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@692973e...eef6144)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/codeql.yml

@@ -32,7 +32,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+      uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871  # v4.2.1
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@429e1977040da7a23b6822b13c129cd1ba93dbb2  # v3.26.2

.github/workflows/compare-envoy-versions.yml

@@ -16,7 +16,7 @@ jobs:
     outputs:
       target-version: ${{ steps.compare-latest-to-current-version.outputs.target-version }}
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871  # v4.2.1
       - name: Fetch latest Envoy version
         id: latest-envoy-version
         run: |

.github/workflows/scorecard.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
     - name: "Checkout code"
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+      uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871  # v4.2.1
       with:
         persist-credentials: false
 

.github/workflows/update-protobuf.yml

@@ -18,7 +18,7 @@ jobs:
       pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871  # v4.2.1
       - name: Run scripts
         working-directory: ./tools/
         run: |