Update gradle/gradle-build-action action to v3

Author: renovate[bot]

.github/workflows/main.yml

@@ -27,6 +27,6 @@ jobs:
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
       - name: Build with Gradle
-        uses: gradle/gradle-build-action@v2
+        uses: gradle/gradle-build-action@v3
         with:
           arguments: build

.github/workflows/release.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
       - name: Build with Gradle
-        uses: gradle/gradle-build-action@v2
+        uses: gradle/gradle-build-action@v3
         with:
           arguments: build
       # --- from main.yml ---