chore: use mvnw wrapper jars

[ajayk]

[ibodrov]

@ajayk sorry for a late follow-up, but what is the reason MavenWrapperDownloader.java is replaced with the JAR? Is that the current preferred way of putting mvnw into repos?

[ajayk]

@ibodrov : @jvanzyl archived the takari wrapper https://github.com/takari/maven-wrapper and the path is to use the https://github.com/apache/maven-wrapper

@jvanzyl any recommendations here ?

[jvanzyl]

I usually just use the JAR

[ibodrov]

The script downloads the JARs anyway, let's not commit binaries -- might cause issues wrt Walmart environments.