Migrate to fontawesome 6

app/views/devise/registrations/_form_fields_openid.html.haml

@@ -10,7 +10,7 @@
       %li{ style: "list-style: none; margin-left: 20px;" }
         = link_to user_openid_path(openid, user_id: current_user.id), method: :delete,
         data: { confirm: "Remove association with #{openid.provider} account?" } do
-          %span.fa.fa-times{ style: "color: red;" }
+          %span.fa-solid.fa-xmark.text-danger
         %span #{openid.provider}:#{openid.email}
       %br
   - else

app/views/devise/shared/_openid_links.html.haml

@@ -5,4 +5,4 @@
                                                         id: "omniauth-#{provider}",
                                                         title: "Your #{provider} login",
                                                         method: :post do
-        %i{class: "fa fa-#{provider}"}
+        %i{class: "fa-brand fa-#{provider}"}