Update the IntelliJ plugin to gjf 1.15.0.

PiperOrigin-RevId: 433928217

idea_plugin/build.gradle

diff --git a/idea_plugin/build.gradle b/idea_plugin/build.gradle
index 1a8bca2..294d77e 100644
--- a/idea_plugin/build.gradle
+++ b/idea_plugin/build.gradle
@@ -23,7 +23,7 @@
 }
 
 ext {
-  googleJavaFormatVersion = "1.14.0"
+  googleJavaFormatVersion = "1.15.0"
 }
 
 apply plugin: "org.jetbrains.intellij"

idea_plugin/resources/META-INF/plugin.xml

diff --git a/idea_plugin/resources/META-INF/plugin.xml b/idea_plugin/resources/META-INF/plugin.xml
index 09360c1..42d5f3b 100644
--- a/idea_plugin/resources/META-INF/plugin.xml
+++ b/idea_plugin/resources/META-INF/plugin.xml
@@ -29,6 +29,8 @@
 
   <change-notes><![CDATA[
     <dl>
+      <dt>1.15.0.0</dt>
+      <dd>Updated to use google-java-format 1.15.0.</dd>
       <dt>1.14.0.0</dt>
       <dd>Updated to use google-java-format 1.14.</dd>
       <dt>1.13.0.0</dt>