docs: fix links to Hoppscotch and remove duplicated line (#2245)

Author: alexislefebvre

symfony/testing.md

@@ -362,9 +362,8 @@ The API Platform Demo [contains a CD workflow](https://github.com/api-platform/d
 
 You may also be interested in these alternative testing tools (not included in the API Platform distribution):
 
-- [Hoppscotch](https://docs.hoppscotch.io/features/tests), create functional test for your API
-- [Hoppscotch](https://docs.hoppscotch.io/documentation/features/rest-api-testing/), create functional test for your API
-  Platform project using a nice UI, benefit from its Swagger integration and run tests in the CI using [the command-line tool](https://docs.hoppscotch.io/cli);
+- [Hoppscotch](https://docs.hoppscotch.io/), create functional [test](https://docs.hoppscotch.io/documentation/getting-started/rest/tests) for your API
+  Platform project using a nice UI, benefit from its Swagger integration and run tests in the CI using [the command-line tool](https://docs.hoppscotch.io/documentation/clients/cli/overview);
 - [Behat](https://behat.org), a [behavior-driven development (BDD)](https://en.wikipedia.org/wiki/Behavior-driven_development) framework to write the API specification as user
   stories and in natural language then execute these scenarios against the application to validate its behavior;
 - [Blackfire Player](https://blackfire.io/player), a nice DSL to crawl HTTP services, assert responses, and extract data