Updated test for UserAgent string

BasicUnitTest/SenderTests.cs

@@ -69,7 +69,7 @@ public class SenderTests {
 
         var regex =
             new Regex(
-                "^(FITConnectDotNetSDK)\\/(((\\d+)\\.){2,3}\\d(-[a-zA-Z]+\\.\\d+)?) \\((commit):[a-zA-Z0-9]{5,}; os:([a-zA-Z0-9\\.]+)\\)$");
+                @"^(FITConnectDotNetSDK)\/(((\d+\.){2,3}\d+(-[a-z]+\.\d+)?)|(local-built))\s{1}\((commit:)([a-zA-Z0-9]{5,}|(unreleased));\s{1}(os):(.*)\)$");
 
         version.Should().MatchRegex(regex);
         Console.WriteLine(version);