Uri.isIpv6 exported (#20736)

* Export Uri.isIpv6

* Export Uri.isIpv6

changelog.md

@@ -114,6 +114,7 @@
 - Undeprecated `os.isvalidfilename`.
 - `std/oids` now uses `int64` to store time internally (before it was int32).
 - `std/uri.Uri` dollar `$` improved, precalculates the `string` result length from the `Uri`.
+- `std/uri.Uri.isIpv6` is now exported.
 
 
 - `std/net.IpAddress` dollar `$` improved, uses a fixed capacity for the `string` result based from the `IpAddressFamily`.

lib/pure/uri.nim

@@ -50,7 +50,7 @@ type
     scheme*, username*, password*: string
     hostname*, port*, path*, query*, anchor*: string
     opaque*: bool
-    isIpv6: bool # not expose it for compatibility.
+    isIpv6*: bool
 
   UriParseError* = object of ValueError