Bump actions/checkout from 2 to 3.1.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.1.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3.1.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
         ports:
           - 6379:6379
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.1.0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
@@ -80,7 +80,7 @@ jobs:
           - 6379:6379
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v3.1.0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
@@ -105,7 +105,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v3.1.0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
@@ -130,7 +130,7 @@ jobs:
         language: [ 'python' ]
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v3.1.0
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2
         with:

.github/workflows/docs.yml

@@ -7,7 +7,7 @@ jobs:
   sphinx-build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
       - name: Install Python
         uses: actions/setup-python@v4
         with:

.github/workflows/release.yml

@@ -6,7 +6,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.1.0
       - name: Set up Python 3.10
         uses: actions/setup-python@v4
         with: