Bump actions/checkout from 2 to 3 (#25)

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](actions/checkout@v2...v3)

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

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

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

.github/workflows/integration.yml

@@ -15,7 +15,7 @@ jobs:
         go-version: '^1.18'
 
     - name: Checkout Code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Lint Go Code
       run: |
@@ -32,7 +32,7 @@ jobs:
         go-version: '^1.18'
 
     - name: Checkout Code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Vet Go code
       run: go vet ./...

.github/workflows/synopsys.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Setup Go
         uses: actions/setup-go@v3

.github/workflows/test-plugin-example.yml

@@ -22,7 +22,7 @@ jobs:
     name: init and build example
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Init
         uses: hashicorp/packer-github-actions@master