Bump actions/checkout from 2 to 3 (#206)

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

.github/workflows/black.yml

@@ -6,5 +6,5 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: psf/black@stable

.github/workflows/cppcheck.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.5.2
+      - uses: actions/checkout@v3
 
       - name: Install deps
         run: |

.github/workflows/macos_test.yml

@@ -13,7 +13,7 @@ jobs:
       matrix:
         python-version: [3.7, 3.8, 3.9, '3.10', 3.11]
     steps:
-      - uses: actions/checkout@v3.5.2
+      - uses: actions/checkout@v3
       - name: Install Python
         uses: actions/setup-python@v4
         with:

.github/workflows/ubuntu_test.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         python-version: [3.7, 3.8, 3.9, '3.10', 3.11]
     steps:
-      - uses: actions/checkout@v3.5.2
+      - uses: actions/checkout@v3
       - name: Install Python
         run: |
           # Add the deadsnakes PPA to install python

.github/workflows/windows_test.yml

@@ -13,7 +13,7 @@ jobs:
       matrix:
         python-version: [3.7, 3.8, 3.9, '3.10', 3.11]
     steps:
-      - uses: actions/checkout@v3.5.2
+      - uses: actions/checkout@v3
       - name: Install packages
         run: |
           py -${{ matrix.python-version }} -m pip install --upgrade pip