Bump org.jetbrains.intellij.platform from 2.1.0 to 2.2.1

Bumps org.jetbrains.intellij.platform from 2.1.0 to 2.2.1.

---
updated-dependencies:
- dependency-name: org.jetbrains.intellij.platform
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ junit = "4.13.2"
 
 # plugins
 changelog = "2.2.1"
-intelliJPlatform = "2.1.0"
+intelliJPlatform = "2.2.1"
 kotlin = "1.9.25"
 kover = "0.8.3"
 qodana = "2024.2.3"