Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v3...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Node.js
         uses: actions/setup-node@v3

.github/workflows/test.yml

@@ -54,7 +54,7 @@ jobs:
 
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v4
 
       - name: Setup Buf
         uses: bufbuild/buf-setup-action@v1.45.0