Excavator: Apply and update the com.palantir.idea-language-injector plugin (#1457)

Author: svc-excavator-bot

build.gradle

@@ -14,6 +14,7 @@ buildscript {
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:4.1.0'
         classpath 'com.palantir.gradle.guide:gradle-guide:1.24.0'
         classpath 'com.palantir.gradle.idea-configuration:gradle-idea-configuration:0.7.0'
+        classpath 'com.palantir.gradle.idea-language-injector:gradle-idea-language-injector:0.2.0'
         classpath 'com.palantir.gradle.jdks:gradle-jdks:0.69.0'
         classpath 'com.palantir.gradle.jdkslatest:gradle-jdks-latest:0.23.0'
         classpath 'com.palantir.gradle.plugintesting:gradle-plugin-testing:0.6.0'
@@ -28,6 +29,7 @@ apply plugin: 'com.palantir.external-publish'
 apply plugin: 'com.palantir.failure-reports'
 apply plugin: 'com.palantir.git-version'
 apply plugin: 'com.palantir.gradle-guide'
+apply plugin: 'com.palantir.idea-language-injector'
 apply plugin: 'com.palantir.jdks'
 apply plugin: 'com.palantir.jdks.latest'
 apply plugin: 'com.palantir.baseline'