Merge pull request #1400 from railsbridge/dependabot/bundler/icalendar-2.12.1

Bump icalendar from 2.12.0 to 2.12.1

Author: michaelglass

Gemfile.lock

@@ -202,7 +202,7 @@ GEM
     hashie (5.0.0)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    icalendar (2.12.0)
+    icalendar (2.12.1)
       base64
       ice_cube (~> 0.16)
       logger