feat: openid connect support (#2873)

db/migrate/20240311205229_add_oidc_fields_to_user.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class AddOIDCFieldsToUser < ActiveRecord::Migration[7.0]
+
+  def change
+    add_column :users, :oidc_uid, :string
+    add_column :users, :oidc_issuer, :string
+  end
+
+end