Fix monikers for Policy-Based Authz (dotnet#22427)

Author: serpent5

aspnetcore/security/authorization/policies.md

@@ -252,7 +252,7 @@ if (context.Resource is AuthorizationFilterContext mvcContext)
 
 ::: moniker-end
 
-::: moniker range=">= aspnetcore-3.0"
+::: moniker range=">= aspnetcore-3.0 < aspnetcore-5.0"
 
 Underneath the covers, [role-based authorization](xref:security/authorization/roles) and [claims-based authorization](xref:security/authorization/claims) use a requirement, a requirement handler, and a pre-configured policy. These building blocks support the expression of authorization evaluations in code. The result is a richer, reusable, testable authorization structure.