fix: for hosts typing in cypress.d.ts (#22718)

* Update cypress.d.ts

Fix the hosts typing in cypress typings file

* fix: Add ts type for hosts in a server base file

cli/types/cypress.d.ts

@@ -2941,7 +2941,7 @@ declare namespace Cypress {
     /**
      * Hosts mappings to IP addresses.
      */
-    hosts: null | string[]
+    hosts: null | {[key: string]: string}
     /**
      * Whether Cypress was launched via 'cypress open' (interactive mode)
      */