Update actions/checkout action to v4 (#654)

.github/workflows/codeql.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2

.github/workflows/lint.yaml

@@ -9,6 +9,6 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: psf/black@stable
       - uses: chartboost/ruff-action@v1

.github/workflows/tests.yaml

@@ -35,7 +35,7 @@ jobs:
           mysql --version
           mysql -uroot -proot -e "CREATE DATABASE mysqldb_test"
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
@@ -78,7 +78,7 @@ jobs:
           mysql -uroot -proot -e "CREATE USER 'scott'@'%' IDENTIFIED BY 'tiger'; GRANT ALL ON *.* TO scott;"
           mysql -uroot -proot -e "CREATE DATABASE django_default; CREATE DATABASE django_other;"
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v4

.github/workflows/windows.yaml

@@ -40,7 +40,7 @@ jobs:
           cmake -DCMAKE_INSTALL_PREFIX=c:/mariadb-connector -DCMAKE_INSTALL_COMPONENT=Development -DCMAKE_BUILD_TYPE=Release -P cmake_install.cmake
 
       - name: Checkout mysqlclient
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: mysqlclient