Fix example dotnet-actors-howto.md

[henrikkarstrom]

Fix example output to not repeat "Success"

Description

Status is "Success" is repeated in output from example.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8d06a1f) 66.58% compared to head (3cbd3b1) 66.58%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1218   +/-   ##
=======================================
  Coverage   66.58%   66.58%           
=======================================
  Files         171      171           
  Lines        5752     5752           
  Branches      628      628           
=======================================
  Hits         3830     3830           
  Misses       1772     1772           
  Partials      150      150           

Flag	Coverage Δ
net6	66.57% <ø> (ø)
net7	66.57% <ø> (ø)
net8	66.57% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.