feat: API v2 subversioning (#15135)

* feat: API v2 subversioning

* Update app.ts

* Added multiple versions to existing controllers

* Updated the slots controller

* chore: version platform library package with npm package alias

* chore: use consts to version

* chore: use consts to version

* chore: version api for cal provider

* chore: remove timezone controller subversion poc

* fixup! Merge branch 'main' into feat/api-v2-subversioning

---------

Co-authored-by: Morgan <33722304+ThyMinimalDev@users.noreply.github.com>
Co-authored-by: Morgan Vernay <morgan@cal.com>

apps/api/v2/src/modules/billing/controllers/billing.controller.ts

@@ -1,4 +1,5 @@
 import { AppConfig } from "@/config/type";
+import { API_VERSIONS_VALUES } from "@/lib/api-versions";
 import { Roles } from "@/modules/auth/decorators/roles/roles.decorator";
 import { NextAuthGuard } from "@/modules/auth/guards/next-auth/next-auth.guard";
 import { OrganizationRolesGuard } from "@/modules/auth/guards/organization-roles/organization-roles.guard";
@@ -29,8 +30,8 @@ import { Stripe } from "stripe";
 import { ApiResponse } from "@calcom/platform-types";
 
 @Controller({
-  path: "/billing",
-  version: "2",
+  path: "/v2/billing",
+  version: API_VERSIONS_VALUES,
 })
 @ApiExcludeController(true)
 export class BillingController {