bump library version to 1.8.0

Author: tobiasschuerg

build.gradle

@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.lib_version = '1.7.0'
+    ext.lib_version = '1.8.0'
     ext.kotlin_version = '1.7.10'
 
     repositories {