Add detected_repository_languages to schema.rb

Fixes a broken master.

https://gitlab.com/gitlab-org/gitlab-ee/issues/10858

The property is present in `ce`'s schema, but not `ee`'s.

db/schema.rb

@@ -2500,6 +2500,7 @@ ActiveRecord::Schema.define(version: 20190325165127) do
     t.string "runners_token_encrypted"
     t.string "bfg_object_map"
     t.boolean "merge_requests_require_code_owner_approval"
+    t.boolean "detected_repository_languages"
     t.boolean "merge_requests_disable_committers_approval"
     t.index ["archived", "pending_delete", "merge_requests_require_code_owner_approval"], name: "projects_requiring_code_owner_approval", where: "((pending_delete = false) AND (archived = false) AND (merge_requests_require_code_owner_approval = true))", using: :btree
     t.index ["ci_id"], name: "index_projects_on_ci_id", using: :btree