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](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>

.github/workflows/check.yaml

@@ -26,7 +26,7 @@ jobs:
           - '3.10'
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
         id: setup-python
         uses: actions/setup-python@v2
@@ -127,7 +127,7 @@ jobs:
               -e python3-yarl \
               -e twine \
             | xargs apt install -y
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Workaround for https://github.com/actions/checkout/pull/762 not persisting
         run: git config --global --add safe.directory "$PWD"
       - name: Install remaining dependencies

.github/workflows/pypi.yaml

@@ -8,7 +8,7 @@ jobs:
   pypi:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python
         uses: actions/setup-python@v2
         with: