Maintenance: Update dependency acts_as_list to v1.2.1

Gemfile.lock

@@ -106,7 +106,7 @@ GEM
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-    acts_as_list (1.2.0)
+    acts_as_list (1.2.1)
       activerecord (>= 6.1)
       activesupport (>= 6.1)
     addressable (2.8.6)