Bump platform version (#212)

Seems we are not able to use the dev command without doing this as it
hard aborts saying the version is too old.

Author: code-asher

gradle.properties

@@ -11,8 +11,8 @@ pluginUntilBuild=231.*
 # IntelliJ Platform Properties -> https://github.com/JetBrains/gradle-intellij-plugin#intellij-platform-properties
 # Gateway available build versions https://www.jetbrains.com/intellij-repository/snapshots and https://www.jetbrains.com/intellij-repository/releases
 platformType=GW
-platformVersion=231.7665.28-CUSTOM-SNAPSHOT
-instrumentationCompiler=231.7665.28-CUSTOM-SNAPSHOT
+platformVersion=231.8109.172-CUSTOM-SNAPSHOT
+instrumentationCompiler=231.8109.172-CUSTOM-SNAPSHOT
 platformDownloadSources=true
 # Plugin Dependencies -> https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
 # Example: platformPlugins = com.intellij.java, com.jetbrains.php:203.4449.22