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

Author: renovate[bot]

.github/workflows/gradle.yml

@@ -20,7 +20,7 @@ jobs:
           path: ~/.gradle
           key: ${{ runner.os }}-gradle
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Grant execute permission to gradlew
         run: chmod +x gradlew
@@ -51,7 +51,7 @@ jobs:
           path: ~/.gradle
           key: ${{ runner.os }}-gradle
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Grant execute permission to gradlew
         run: chmod +x gradlew
@@ -101,7 +101,7 @@ jobs:
           path: ~/.gradle
           key: ${{ runner.os }}-gradle
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew