Remove bootsnap

Gemfile.lock

@@ -70,8 +70,6 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     bcrypt (3.1.16)
     bindex (0.8.1)
-    bootsnap (1.10.3)
-      msgpack (~> 1.2)
     builder (3.2.4)
     capybara (3.36.0)
       addressable
@@ -163,7 +161,6 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.2)
     minitest (5.15.0)
-    msgpack (1.4.4)
     net-imap (0.2.3)
       digest
       net-protocol
@@ -307,7 +304,6 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  bootsnap
   capybara
   cssbundling-rails
   database_cleaner