⬆️ Bump actions/checkout from 2.3.5 to 2.4.0 (#49)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.3.5 to 2.4.0.
- [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/v2.3.5...v2.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

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

.github/workflows/deploy.yaml

@@ -33,7 +33,7 @@ jobs:
       version: ${{ steps.release.outputs.version }}
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
       - name: 🚀 Run add-on information action
         id: information
         uses: frenck/action-addon-information@v1.3
@@ -69,7 +69,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
       - name: 🏗 Set up build cache
         id: cache
         uses: actions/cache@v2.1.6