fix: write server config to telemetry (#13590)

* fix: add external auth configs to telemetry

* Refactor telemetry to send the entire config

* gen

* Fix linting

coderd/apidoc/docs.go

@@ -9349,12 +9349,6 @@ const docTemplate = `{
                     "description": "DisplayName is shown in the UI to identify the auth config.",
                     "type": "string"
                 },
-                "extra_token_keys": {
-                    "type": "array",
-                    "items": {
-                        "type": "string"
-                    }
-                },
                 "id": {
                     "description": "ID is a unique identifier for the auth config.\nIt defaults to ` + "`" + `type` + "`" + ` when not provided.",
                     "type": "string"