Remove Listen gem

`ActiveSupport::EventedFileUpdateChecker` introduces a dependency on the
Listen gem. The Listen gem brings in
`https://github.com/guard/rb-inotify/` and that gem fails on M1

guard/rb-inotify#107

This may be solveable by declaring something in docker. but I haven't
figured that out.

Gemfile

@@ -19,7 +19,7 @@ group :development, :test do
 end
 
 group :development do
-  gem "listen", "~> 3.3"
+  # gem "listen", "~> 3.3"
   gem "spring"
 end
 

Gemfile.lock

@@ -91,9 +91,6 @@ GEM
     jbuilder (2.11.2)
       activesupport (>= 5.0.0)
     jmespath (1.4.0)
-    listen (3.7.0)
-      rb-fsevent (~> 0.10, >= 0.10.3)
-      rb-inotify (~> 0.9, >= 0.9.10)
     loofah (2.12.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -146,9 +143,6 @@ GEM
       thor (~> 1.0)
     rainbow (3.0.0)
     rake (13.0.6)
-    rb-fsevent (0.11.0)
-    rb-inotify (0.10.1)
-      ffi (~> 1.0)
     regexp_parser (2.1.1)
     rexml (3.2.5)
     rubocop (1.20.0)
@@ -219,7 +213,6 @@ DEPENDENCIES
   aws-sdk-s3
   bootsnap (>= 1.4.4)
   jbuilder (~> 2.7)
-  listen (~> 3.3)
   puma (~> 5.0)
   rails (~> 6.1.4)
   sass-rails (>= 6)

config/environments/development.rb

@@ -63,5 +63,5 @@
 
   # Use an evented file watcher to asynchronously detect changes in source code,
   # routes, locales, etc. This feature depends on the listen gem.
-  config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+  config.file_watcher = ActiveSupport::FileUpdateChecker
 end