[2.x] Add support for IJ 2021.2

[echeble]

Upgrade plugin's supporting versions following the release of IDEA 2021.2

[raniejade]

thanks for this @eacheble!

[echeble]

seems it's failing to pull from the release... maybe I have a typo in the version 🤔

[raniejade]

You can take a look here: https://www.jetbrains.com/intellij-repository/releases/ if the version exists.

[echeble]

this time I actually tested that the kotlin version is reachable, so hopefully last commit will pass the pr build checks 🤞
If this one goes well then I'll mimic the changes on #978

[echeble]

@raniejade do you think we're ok with this one?
Can you also launch the build checks on #978? I replicated the changes I made here and this time will pass

[raniejade]

This is good, thanks again @eacheble! I'll run the build for #978.

[t0r0X]

This ticket and #978 superceded by #979

[echeble]

This ticket and #978 superceded by #979

@t0r0X I don't think that's entirely accurate. This aims to a branch (2.x) which is different than 978 & 979 branch (both 2.0.x)

[t0r0X]

This ticket and #978 superceded by #979

@t0r0X I don't think that's entirely accurate. This aims to a branch (2.x) which is different than 978 & 979 branch (both 2.0.x)

@eacheble You're right, I've overlooked that branch.