Ensure binary version matches Gradle plugin version

[oguzkocer]

We need to add a version check here to make sure we update the binary whenever the Gradle plugin is updated. Otherwise, even if the Gradle plugin version is updated in the client, it'll still use the old binary.

P.S: There might be a better place for this check, but I wanted to make sure to link this one when/if I work on this issue.

cc @jkmassel

[jkmassel]

@oguzkocer and I chatted offline about just distributing the binaries with the gradle plugin as a resource rather than downloading it. This is a better approach, so we should do that (rather than adding a version check).