Set latest lib version

Set latest lib version to v1.7.1

Author: Dhaval2404

README.md

@@ -54,7 +54,7 @@ Almost 90% of the app that I have developed has an Image upload feature. Along w
 	```
 
     ```groovy
-   implementation 'com.github.dhaval2404:imagepicker:1.7'
+   implementation 'com.github.dhaval2404:imagepicker:1.7.1'
     ```
 
    **If you are yet to Migrate on AndroidX, Use support build artifact:**