Update Gradle Wrapper

1. Go to the releases page and read up on the release notes that you want to update to.

2. Go to the release checksums page and copy the Binary-only (-bin) ZIP Checksum for the version you want to update to.

3. Run the following command and replace the VERSION & SHA256 with the correct version and sha256 that you've retrieved from step 1.

./gradlew wrapper --gradle-version=VERSION --gradle-distribution-sha256-sum SHA256 && ./gradlew wrapper