build(deps): bump actions/checkout from 2 to 3

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>

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: "Clone Repository"
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: "Run pylint"
       uses: osbuild/koji-osbuild/test@main
       with:
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: "Clone Repository"
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: "Run unit tests"
       uses: osbuild/koji-osbuild/test@main
       with:
@@ -40,7 +40,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: "Clone Repository"
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: "Run ShellCheck"
       uses: ludeeus/action-shellcheck@1.1.0
       with:
@@ -50,7 +50,7 @@ jobs:
     name: "Spell check"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: codespell-project/actions-codespell@master
         with:
           skip: ./.git,build

.github/workflows/coverity_scan.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repository
-        uses: actions/checkout@v2.3.4
+        uses: actions/checkout@v3
 
       # https://scan.coverity.com/projects/osbuild-osbuild-composer
       - name: Run coverity scan script

.github/workflows/trigger-gitlab.yml

@@ -40,7 +40,7 @@ jobs:
       SCHUTZBOT_SSH_KEY: ${{ secrets.SCHUTZBOT_SSH_KEY }}
     steps:
       - name: Clone repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           # otherwise we are testing target branch instead of the PR branch (see pull_request_target trigger)
           ref: ${{ github.event.pull_request.head.sha }}