fix(abstract-substrate): fix package.json bitgo libs version

fixed bitgo libs version in the package.json

WP-3448

TICKET: WP-3448

Author: alebusse

modules/abstract-substrate/package.json

@@ -38,7 +38,7 @@
     ]
   },
   "dependencies": {
-    "@bitgo/sdk-core": "^28.18.0",
-    "@bitgo/statics": "^50.17.0"
+    "@bitgo/sdk-core": "^28.19.0",
+    "@bitgo/statics": "^50.18.0"
   }
 }