Update NamedPipeServerStreamAcl.xml (#8887)

Fix typo. Looks bad: https://learn.microsoft.com/en-us/dotnet/api/system.io.pipes.namedpipeserverstreamacl?view=net-7.0

Author: carlossanlop

xml/System.IO.Pipes/NamedPipeServerStreamAcl.xml

@@ -17,7 +17,7 @@
   </Base>
   <Interfaces />
   <Docs>
-    <summary>Provides security related APIs for the <see. cref="T:System.IO.Pipes.NamedPipeServerStream" /> class.</summary>
+    <summary>Provides security related APIs for the <see cref="T:System.IO.Pipes.NamedPipeServerStream" /> class.</summary>
     <remarks>To be added.</remarks>
   </Docs>
   <Members>