Update aasm to version 5.5.1

Author: depfu[bot]

Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    aasm (5.5.0)
+    aasm (5.5.1)
       concurrent-ruby (~> 1.0)
     actioncable (7.0.8.7)
       actionpack (= 7.0.8.7)
@@ -93,7 +93,7 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     coderay (1.1.3)
-    concurrent-ruby (1.3.4)
+    concurrent-ruby (1.3.5)
     coveralls (0.8.23)
       json (>= 1.8, < 3)
       simplecov (~> 0.16.1)