fix: httpbun dependencies removed (#6041)

* fix: standardize URL formatting in insomnia test files

* feat: add mix router for handling custom redirects and cookies

* fix: add validation for redirect count to prevent infinite loops

* fix: update test URLs to use local server and add query parameters for improved testing

tests/request/settings/collection/timeout.bru

@@ -5,7 +5,7 @@ meta {
 }
 
 get {
-  url: https://httpbun.com/redirect/2
+  url: https://testbench-sanity.usebruno.com/redirect-to-ping
   body: none
   auth: inherit
 }