Fixed daynight color for arrow icon (issue AleSpero/ExpandableCardView#49)

Author: Stjin

expandablecardview/build.gradle

@@ -5,7 +5,7 @@ apply plugin: 'kotlin-android-extensions'
 ext {
     PUBLISH_GROUP_ID = 'host.stjin'
     PUBLISH_ARTIFACT_ID = 'expandable-cardview'
-    PUBLISH_VERSION = '1.2.0-beta01'
+    PUBLISH_VERSION = '1.2.0-beta02'
 }
 
 android {
@@ -14,7 +14,7 @@ android {
     defaultConfig {
         minSdkVersion 18
         targetSdkVersion 29
-        versionCode 6
+        versionCode 7
         versionName PUBLISH_VERSION
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"