Bump actions/checkout from 3 to 4 (#304)

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](actions/checkout@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
         with:
           go-version: ${{ matrix.go-version }}
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Generate env file
         run: 'echo "$ENV_FILE" > cmd/env'
         shell: bash
@@ -42,7 +42,7 @@ jobs:
         uses: actions/setup-go@v4.1.0
         with:
           go-version: 1.20.0
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Generate env file
         run: 'echo "$ENV_FILE" > cmd/env'
         shell: bash

.github/workflows/deploy.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           version: 3.20.0
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Generate env file
         run: 'echo "$ENV_FILE" > cmd/env'
         shell: bash

.github/workflows/mutation.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           version: 3.20.0
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Generate env file
         run: 'echo "$ENV_FILE" > cmd/env'
         shell: bash