chore: bump platform version to 2024.2

Because it supports Java 21.

Author: Blarc

gradle.properties

@@ -6,12 +6,12 @@ pluginRepositoryUrl = https://github.com/Blarc/ai-commits-intellij-plugin
 pluginVersion = 2.16.0
 
 # https://plugins.jetbrains.com/docs/intellij/build-number-ranges.html
-pluginSinceBuild = 233
+pluginSinceBuild = 242
 # pluginUntilBuild = 222.*
 
 # https://github.com/JetBrains/gradle-intellij-plugin#intellij-platform-properties
 platformType = IC
-platformVersion = 2023.3
+platformVersion = 2024.2
 
 # https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
 # Example: platformPlugins = com.intellij.java, com.jetbrains.php:203.4449.22