workflow: bump version checkout action v3 -> v4

.github/workflows/deploy.yml

@@ -19,7 +19,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - uses: actions/setup-python@v5

.github/workflows/doc.yml

@@ -19,7 +19,7 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - uses: actions/setup-python@v5

.github/workflows/lint.yml

@@ -19,7 +19,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - uses: actions/setup-python@v5

.github/workflows/release-new-version.yml

@@ -24,7 +24,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Update the ${{ env.TAG_NAME }} tag
         id: update-major-tag
         uses: actions/[email protected]

.github/workflows/unittest.yml

@@ -25,7 +25,7 @@ jobs:
           - windows-latest
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - uses: actions/setup-python@v5