chore(deps): update dependency sequel to v5.91.0

Author: renovate[bot]

example/animal-service/Gemfile.lock

@@ -79,7 +79,7 @@ GEM
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
     ruby2_keywords (0.0.5)
-    sequel (5.89.0)
+    sequel (5.91.0)
       bigdecimal
     sinatra (4.1.1)
       logger (>= 1.6.0)
@@ -102,7 +102,7 @@ PLATFORMS
 DEPENDENCIES
   pact!
   pry
-  rack (>= 3.1.10)
+  rack (>= 3.1.12)
   rake
   rspec
   sequel