Upgrade GitHub Actions to the latest versions

.github/workflows/unit-tests.yml

@@ -42,10 +42,10 @@ jobs:
             python-version: "3.7"
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -58,7 +58,7 @@ jobs:
           python -m pip install pytest
 
       - name: Cache data
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ env.HANLP_HOME }}
           key: hanlp-data
@@ -74,7 +74,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: |
           python -m pip install setuptools wheel twine