Update the IntelliJ plugin to 1.26.0.

PiperOrigin-RevId: 741251928

Author: plumpy

idea_plugin/build.gradle.kts

@@ -18,7 +18,7 @@ import org.jetbrains.intellij.platform.gradle.TestFrameworkType
 
 // https://github.com/JetBrains/intellij-platform-gradle-plugin/releases
 plugins {
-  id("org.jetbrains.intellij.platform") version "2.2.0"
+  id("org.jetbrains.intellij.platform") version "2.4.0"
 }
 
 repositories {
@@ -30,7 +30,7 @@ repositories {
 }
 
 // https://github.com/google/google-java-format/releases
-val googleJavaFormatVersion = "1.25.2"
+val googleJavaFormatVersion = "1.26.0"
 
 java {
   sourceCompatibility = JavaVersion.VERSION_17

idea_plugin/src/main/resources/META-INF/plugin.xml

@@ -35,6 +35,8 @@
   ]]></description>
   <change-notes><![CDATA[
     <dl>
+      <dt>1.26.0.0</dt>
+      <dd>Updated to use google-java-format 1.26.0.</dd>
       <dt>1.25.2.0</dt>
       <dd>Updated to use google-java-format 1.25.2.</dd>
       <dt>1.25.1.0</dt>