Switch to @rollup/plugin-typescript from rollup-plugin-typescript2

[pravi]

Current Behavior

Currently rollup-plugin-typescript2 is used

Desired Behavior

typanion and clipanion recently moved to @rollup/plugin-typescript arcanis/typanion#8

as it is maintained by rollup community directly has better chance of long term maintenance.

Suggested Solution

Update dependency to @rollup/plugin-typescript

Who does this impact? Who is this for?

Switching to better maintained dependencies is always a big win for long term

Describe alternatives you've considered

Additional context

It'd help in reducing maintenance in debian, we already have @rollup/plugin-typescript and it'd be nice if we can avoid maintaining rollup-plugin-typescript2 as well.

[aladdin-add]

👍 sounds good!