Replace @cypress/mocha-teamcity-reporter with mocha-teamcity-reporter (…

…#6011)

docs/app/tooling/reporters.mdx

@@ -41,7 +41,7 @@ By default, Cypress uses the `spec` reporter to output information to `STDOUT`.
 We've also added the two most common 3rd party reporters for Mocha. These are
 built into Cypress and you can use them without installing anything.
 
-- [`teamcity`](https://github.com/cypress-io/mocha-teamcity-reporter)
+- [`teamcity`](https://github.com/travisjeffery/mocha-teamcity-reporter)
 - [`junit`](https://github.com/michaelleeallen/mocha-junit-reporter)
 
 ## Custom reporters