Bump actions/checkout from 2.4.0 to 3 (go-gorm#83)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.4.0 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.4.0...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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -13,6 +13,6 @@ jobs:
       uses: actions/setup-go@v2.2.0
       with:
         go-version: 1.14
-    - uses: actions/checkout@v2.4.0
+    - uses: actions/checkout@v3
     - name: Test
       run: go test -v -cover .