Bump actions/checkout from 2 to 3 (#241)

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

Author: dependabot[bot]

.github/workflows/check.yml

@@ -28,7 +28,7 @@ jobs:
           python-version: "3.10"
       - name: Install tox
         run: python -m pip install tox
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Setup python for test ${{ matrix.py }}
@@ -69,7 +69,7 @@ jobs:
     runs-on: ubuntu-20.04
     needs: test
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v2
@@ -107,7 +107,7 @@ jobs:
           - readme
           - type
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Setup Python "3.10"
@@ -132,7 +132,7 @@ jobs:
           python-version: "3.10"
       - name: Install build
         run: python -m pip install build
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Build sdist and wheel