Update IntelliJ platform version to 2.6.0 and adjust release channels

Author: CodeDrivenMitch

build.gradle.kts

@@ -29,7 +29,7 @@ plugins {
     // Kotlin support
     id("org.jetbrains.kotlin.jvm") version "2.1.0"
     // Gradle IntelliJ Plugin
-    id("org.jetbrains.intellij.platform") version "2.1.0"
+    id("org.jetbrains.intellij.platform") version "2.6.0"
     // Gradle Changelog Plugin
     id("org.jetbrains.changelog") version "2.2.1"
     // Gradle Qodana Plugin
@@ -85,7 +85,7 @@ intellijPlatform {
         ides {
             select {
                 types = listOf(IntelliJPlatformType.IntellijIdeaCommunity)
-                channels = listOf(ProductRelease.Channel.RELEASE, ProductRelease.Channel.EAP)
+                channels = listOf(ProductRelease.Channel.RELEASE)
                 sinceBuild = properties("pluginSinceBuild")
                 untilBuild = provider { null }
             }