Merge pull request #6073 from segmentio/update-csharp-support-label

Update C# Support Label

Author: pwseg

src/connections/sources/catalog/libraries/server/csharp/index.md

@@ -1,7 +1,7 @@
 ---
 title: Analytics-CSharp (C#)
 strat: csharp
-support_type: maintenance
+support_type: flagship
 id: 
 redirect_from:
    - '/connections/sources/catalog/libraries/mobile/unity'