chore(gitignore): use new API endpoint from TopTal (#11835)

plugins/gitignore/README.md

 # gitignore
 
-This plugin enables you the use of [gitignore.io](https://www.gitignore.io/) from the command line. You need an active internet connection.
+This plugin enables you the use of [gitignore.io](https://www.toptal.com/developers/gitignore) from the command line. You need an active internet connection.
 
 To use it, add `gitignore` to the plugins array in your zshrc file:
 

plugins/gitignore/gitignore.plugin.zsh

-function gi() { curl -fLw '\n' https://www.gitignore.io/api/"${(j:,:)@}" }
+function gi() { curl -fLw '\n' https://www.toptal.com/developers/gitignore/api/"${(j:,:)@}" }
 
 _gitignoreio_get_command_list() {
-  curl -sfL https://www.gitignore.io/api/list | tr "," "\n"
+  curl -sfL https://www.toptal.com/developers/gitignore/api/list | tr "," "\n"
 }
 
 _gitignoreio () {