Upgrade csharp-sdk team permission to maintain on csharp-sdk repo (#85)

The csharp-sdk team only had push permission, which was insufficient for
members to push to protected branches, edit/assign issues, or have their
PR approvals count toward merge requirements. Upgrading to maintain grants
these capabilities without admin access.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Den Delimarsky <53200638+localden@users.noreply.github.com>

Author: 3 people

src/config/repoAccess.ts

@@ -186,7 +186,7 @@ export const REPOSITORY_ACCESS: RepositoryAccess[] = [
     repository: 'csharp-sdk',
     teams: [
       { team: 'csharp-sdk-admin', permission: 'admin' },
-      { team: 'csharp-sdk', permission: 'push' },
+      { team: 'csharp-sdk', permission: 'maintain' },
     ],
     users: [{ username: 'PederHP', permission: 'triage' }],
   },