* Add count to `GetUserRepositories` so that pagination can be supported for `/user/{username}/repos`
* Rework ListMyRepos to use models.SearchRepository
ListMyRepos was an odd one. It first fetched all user repositories and then tried to supplement them with accessible map. The end result was that:
* Limit for pagination did not work because accessible repos would always be appended
* The amount of pages was incorrect if one were to calculate it
* When paginating, all accessible repos would be shown on every page
Hopefully it should now work properly. Fixes#11800 and does not require any change on Drone-side as it can properly interpret and act on Link header which we now set.
Co-authored-by: Lauris BH <lauris@nix.lv>
(cherry picked from commit 0159851cc3fa80e4df4908a5e760afa20452f712)
fdc6287973