Bump actions/checkout from 2 to 3 (#177)

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] <support@github.com>

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

.github/workflows/auto-merge.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.actor == 'dependabot[bot]'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: ahmadnassri/action-dependabot-auto-merge@v2.6.6
         with:
           github-token: ${{ secrets.AUTOMERGE_TOKEN }}

.github/workflows/links.yml

@@ -10,7 +10,7 @@ jobs:
   linkChecker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
+      - uses: actions/checkout@v3
 
       - name: Link Checker
         uses: ./ # Uses an action in the root directory

.github/workflows/main.yml

@@ -13,7 +13,7 @@ jobs:
       # To use this repository's private action,
       # we must check out the repository
       - name: Checkout
-        uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
+        uses: actions/checkout@v3
       - name: test defaults
         uses: ./
         with: