chore: add askpt as a .NET maintainer (#419)

Signed-off-by: André Silva <[email protected]>

Author: askpt

Diff for: config/open-feature/sdk-dotnet/workgroup.yaml

@@ -5,7 +5,6 @@ repos:
 approvers:
   - bacherfl
   - cdonnellytx
-  - askpt
   - austindrenski
   - jenshenneberg
 
@@ -14,5 +13,6 @@ maintainers:
   - toddbaert
   - benjiro
   - kinyoklion
+  - askpt
 
 admins: []