chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/e2e.yml

@@ -22,7 +22,7 @@ jobs:
       cancel-in-progress: true
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - run: |
           PROBE_VERSION="$(python setup.py --version)"
           echo "SPP_PROBE_VERSION=$PROBE_VERSION" >> $GITHUB_ENV

.github/workflows/lint.yml

@@ -15,7 +15,7 @@ jobs:
     name: Flake8
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.6'

.github/workflows/release.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - run: python setup.py sdist
       - name: Publish a Python distribution to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Install Python 3
         uses: actions/setup-python@v4
         with: