New rig app instead of rim

[cderv]

As it has been renamed for 0.4.0 release https://github.com/r-lib/rig/releases

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

rig

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate

rim

• [x] Description
• [x] License
• [x] Hashes