Bump actions/checkout from 2 to 3 (#411)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [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/v2...v3)

---
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/integration.yaml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
 
@@ -49,7 +49,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Lint YAML Files
       id: yaml-lint

.github/workflows/main.yml

@@ -10,7 +10,7 @@ jobs:
 
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Compile
       run: make

.github/workflows/sync-labels.yaml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Sync labels
       uses: crazy-max/ghaction-github-labeler@v3