fix: gradle code snippet

Author: danieldanielecki

data/blog/software-development/mobile-development/native/android/jetifier-androidx-migration-guide.mdx

@@ -326,7 +326,7 @@ implementation('com.example:some-library:1.0.0') {
    ```
 
 2. **Update Gradle Properties**
-   ```properties
+   ```gradle
    # gradle.properties
    android.useAndroidX=true
    android.enableJetifier=true