Update readme

Author: al-af

README.md

@@ -12,7 +12,7 @@
 
 ### <a id="plugin-build-for"> This plugin is built for
 
-- Android AppsFlyer SDK **v6.17.5**
+- Android AppsFlyer SDK **v6.17.3**
 - iOS AppsFlyer SDK **v6.17.5**
 - Minimum tested with React-Native **v0.62.0** (older versions might be supported)