Update fantomas version to 7.0.3 in dotnet-tools configuration

Author: TheAngryByrd

.config/dotnet-tools.json

@@ -10,7 +10,7 @@
       "rollForward": false
     },
     "fantomas": {
-      "version": "7.0.1",
+      "version": "7.0.3",
       "commands": [
         "fantomas"
       ],