Merge pull request #142 from cego/lejo/cast-to-microseconds

Cast to microseconds

Author: LauJosefsen

src/RequestInsurance/Casts/CarbonUtc.php

@@ -52,6 +52,6 @@ public function set($model, $key, $value, $attributes): ?string
             }
         }
 
-        return $value->setTimezone('UTC')->toDateTimeString();
+        return $value->setTimezone('UTC')->toDateTimeString('microsecond');
     }
 }