chore(deps): bump actions/checkout from 2 to 3 (#117)

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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
                 python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
         steps:
             - name: "Check out repository"
-              uses: actions/checkout@v2
+              uses: actions/checkout@v3
 
             - name: "Set up Python"
               uses: actions/setup-python@v2
@@ -55,7 +55,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - name: "Check out repository"
-              uses: actions/checkout@v2
+              uses: actions/checkout@v3
 
             - name: "Set up Python"
               uses: actions/setup-python@v2
@@ -91,7 +91,7 @@ jobs:
         needs: [test, check]
         steps:
             - name: "Check out repository"
-              uses: actions/checkout@v2
+              uses: actions/checkout@v3
 
             - name: "Set up Python"
               uses: actions/setup-python@v2