chore: add github.com user id association (#14045)

* chore: add github.com user id association

This will eventually be used to show an indicator in the UI
to star the repository if you've been using Coder for a while
and have not starred the repo.

If you have, we'll never show a thing!

* gen

* Fix model query

* Fix linting

* Ignore auditing github.com user id

* Add test

* Fix gh url var name

* Update migration

* Update coderd/database/dbauthz/dbauthz.go

Co-authored-by: Steven Masley <Emyrk@users.noreply.github.com>

* Fix updating to when the token changes

* Fix migration

---------

Co-authored-by: Steven Masley <Emyrk@users.noreply.github.com>

docs/api/git.md

@@ -71,6 +71,7 @@ curl -X GET http://coder-server:8080/api/v2/external-auth/{externalauth} \
     {
       "account": {
         "avatar_url": "string",
+        "id": 0,
         "login": "string",
         "name": "string",
         "profile_url": "string"
@@ -81,6 +82,7 @@ curl -X GET http://coder-server:8080/api/v2/external-auth/{externalauth} \
   ],
   "user": {
     "avatar_url": "string",
+    "id": 0,
     "login": "string",
     "name": "string",
     "profile_url": "string"