chore(deps): bump appcompat in /tutorials/kotlin/MapWithMarker (googlemaps-samples#266)

Author: dependabot-preview[bot]

tutorials/kotlin/MapWithMarker/app/build.gradle

@@ -37,7 +37,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "androidx.core:core-ktx:1.3.1"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'com.google.android.gms:play-services-maps:17.0.0'
 
     // Tests