Update checkout action to v4 in workflow files

Author: khb7840

.github/workflows/build-static.yml

@@ -54,7 +54,7 @@ jobs:
     needs: sanitizer
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Apt dependencies
       run: |
@@ -104,7 +104,7 @@ jobs:
     needs: sanitizer
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Homebrew dependencies
       run: |
@@ -158,7 +158,7 @@ jobs:
     needs: sanitizer
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build x64
       shell: cmd

.github/workflows/python.yml

@@ -12,7 +12,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: psf/black@stable
       with:
         options: "--check"
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: lint
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Build SDist
       run: pipx run build --sdist
     - uses: actions/upload-artifact@v4
@@ -40,7 +40,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: pypa/cibuildwheel@v2.10.2
       env:
         CIBW_ARCHS_MACOS: auto universal2

.github/workflows/test-notebook.yml

@@ -10,7 +10,7 @@ jobs:
   notebook:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Setup Python
       uses: actions/setup-python@v2.3.3
       with: