[DNM] Upgrade Intellij Gradle Platform to 2.0

[bmarcaur]

According to the docs this should already not work on the latest versions of intellij: https://plugins.jetbrains.com/docs/intellij/developing-plugins.html#gradle-plugin

I am fairly certain that this does not work.

This is what GJF did to upgrade google/google-java-format@0ebb588 I suspect that we should change our java setup to match this. Also woof they shaded all their dependencies but didn't change their package names and it conflicts with some of the other standard deps we need for the other plugins. It might be worth spinning this out into its own plugin given how few things produce intellij plugins.

[changelog-app]

Generate changelog in changelog/@unreleased

What do the change types mean?

• feature: A new feature of the service.
• improvement: An incremental improvement in the functionality or operation of the service.
• fix: Remedies the incorrect behaviour of a component of the service in a backwards-compatible way.
• break: Has the potential to break consumers of this service's API, inclusive of both Palantir services
  and external consumers of the service's API (e.g. customer-written software or integrations).
• deprecation: Advertises the intention to remove service functionality without any change to the
  operation of the service itself.
• manualTask: Requires the possibility of manual intervention (running a script, eyeballing configuration,
  performing database surgery, ...) at the time of upgrade for it to succeed.
• migration: A fully automatic upgrade migration task with no engineer input required.

Note: only one type should be chosen.

How are new versions calculated?

• ❗The break and manual task changelog types will result in a major release!
• 🐛 The fix changelog type will result in a minor release in most cases, and a patch release version for patch branches. This behaviour is configurable in autorelease.
• ✨ All others will result in a minor version release.

Type

• Feature
• Improvement
• Fix
• Break
• Deprecation
• Manual task
• Migration

Description

[DNM] Upgrade Intellij Gradle Platform to 2.0

Check the box to generate changelog(s)

• Generate changelog entry