win_get_url - Fix proxy_url not used correctly (#58738)

changelogs/fragments/win_get_url-proxy-not-used.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - "win_get_url - Fix proxy_url not used correctly (https://github.com/ansible/ansible/issues/58691)"

lib/ansible/modules/windows/win_get_url.ps1

@@ -108,7 +108,7 @@ Function Invoke-AnsibleWebRequest {
 
     if (-not $UseProxy) {
         $web_request.Proxy = $null
-    } elseif ($ProxyUri) {
+    } elseif ($Proxy) {
         $web_request.Proxy = $Proxy
     }