androidStudioPackages.{dev,canary}: 3.6.0.5 -> 3.6.0.6

Unfortunately this update will probably still cause the builds from
canary 3 to break and require manual steps to resolve these issues:
https://issuetracker.google.com/issues/136077720#comment9

I.e. manually update the Gradle plugin here (e.g. directly to alpha06):
dependencies {
   classpath 'com.android.tools:gradle:3.6.0-alpha03'
}

But as the current status is "Won't Fix (Infeasible)" [0] there's no
point in skipping the updates for the dev/canary channel.

[0]: https://issuetracker.google.com/issues/136077720#comment10