Upgrade platformVersion to 2025.2.6.1 and Gradle to 9.4.1.

Author: hsz

.github/template-cleanup/gradle.properties

@@ -10,7 +10,7 @@ pluginVersion = 0.0.1
 pluginSinceBuild = 252
 
 # IntelliJ Platform Properties -> https://plugins.jetbrains.com/docs/intellij/tools-gradle-intellij-plugin.html#configuration-intellij-extension
-platformVersion = 2025.2.5
+platformVersion = 2025.2.6.1
 
 # Plugin Dependencies -> https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
 # Example: platformPlugins = com.jetbrains.php:203.4449.22, org.intellij.scala:2023.3.27@EAP
@@ -21,7 +21,7 @@ platformBundledPlugins =
 platformBundledModules =
 
 # Gradle Releases -> https://github.com/gradle/gradle/releases
-gradleVersion = 9.3.1
+gradleVersion = 9.4.1
 
 # Opt-out flag for bundling Kotlin standard library -> https://jb.gg/intellij-platform-kotlin-stdlib
 kotlin.stdlib.default.dependency = false