Add support for waiting on the Nth request/response in cy.intercept()

Current behavior:

cy.route has (undocumented) support for waiting on the Nth request/response:

cy.wait('@foo.1') // first response
cy.wait('@foo.request.1') // first request
cy.wait('@foo.response.5') // fifth response

cy.route2 does not have this.

Desired behavior:

Implement this in cy.route2, so that the following tests can pass:

https://github.com/cypress-io/cypress/blob/1b472e03e56de2de42d8d302009b5e3a1ee35732/packages/driver/test/cypress/integration/commands/net_stubbing_spec.ts#L991-L1030

Depends on #687

[quad5]

Hi, #687 is now closed. Any chance to get this enhancement ticket on to the implementation queue. This enhancement would help with the issue I reported (#9034). Thanks.

[thor84no]

The ability to get the last one seems likely to cause subtle bugs. How do you know there isn’t another request about to come through and how do you know that one isn’t the one the developer wanted? Unless you can guarantee that the request you want has already happened you can’t feasible get the “last” request and know its what you’re after. It seems extremely likely that people will use that incorrectly. At least Nth request is far more likely to be deterministic.