Build(deps): bump org.jetbrains.intellij.platform from 2.8.0 to 2.9.0

Bumps org.jetbrains.intellij.platform from 2.8.0 to 2.9.0.

---
updated-dependencies:
- dependency-name: org.jetbrains.intellij.platform
  dependency-version: 2.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -26,5 +26,5 @@ junixsocket = ["junixsocket-common", "junixsocket-native-common"]
 changelog = "org.jetbrains.changelog:2.4.0"
 gradleJvmWrapper = "me.filippov.gradle.jvm.wrapper:0.15.0"
 grammarkit = "org.jetbrains.grammarkit:2022.3.2.2"
-intellijPlatform = "org.jetbrains.intellij.platform:2.8.0"
+intellijPlatform = "org.jetbrains.intellij.platform:2.9.0"
 kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }