Support Gradle 5.x in GradleInspectionTest

idea/testData/gradle/inspections/differentKotlinGradleVersion/gradle.properties

@@ -1 +1 @@
-test=1.0.1
+test=1.3.0

idea/testData/gradle/inspections/differentStdlibGradleVersion/build.gradle

@@ -9,12 +9,12 @@ buildscript {
     }
 
     dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.2")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.20")
     }
 }
 
 apply plugin: 'kotlin'
 
 dependencies {
-    compile "org.jetbrains.kotlin:kotlin-stdlib:1.0.3"
+    compile "org.jetbrains.kotlin:kotlin-stdlib:1.3.30"
 }

idea/testData/gradle/inspections/differentStdlibGradleVersionWithImplementation/build.gradle

@@ -9,12 +9,12 @@ buildscript {
     }
 
     dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.2")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.20")
     }
 }
 
 apply plugin: 'kotlin'
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.0.3"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.3.30"
 }

idea/testData/gradle/inspections/differentStdlibGradleVersionWithVariables/gradle.properties

@@ -1,2 +1,2 @@
-kotlin=1.0.1
-lib_version=1.0.3
+kotlin=1.3.10
+lib_version=1.3.30