fix(resend-otp): broken url

This includes the fix from craftsys/msg91-php#1 which was included in 0.8.1 release

Author: sudkumar

composer.json

@@ -25,7 +25,7 @@
     },
     "require": {
         "php": "^7.1.3",
-        "craftsys/msg91-php": "^0.8",
+        "craftsys/msg91-php": "^0.8.1",
         "illuminate/support": "^5.2|^6.0|^7.0"
     },
     "require-dev": {