Upgrade ruby version for omnibus

Upgrade from 2.7.3 to 3.2.2.
Ruby 2.7.3 is not supported anymore.

Author: miry

darwin/README.md

@@ -1,11 +1,11 @@
-# Darwin `x86_64` build
+# Darwin `universal` build
 
-The `x86_64` crystal darwin build is built natively in an osx host using omnibus.
+The `universal` crystal darwin build is built natively in an osx host using omnibus.
 The whole process is automated using a `Makefile`.
 
 # Dependencies
 
-* Ruby 2.7.3 and `bundle install --binstubs` in `./omnibus`
+* Ruby 3.2.2 and `bundle install --binstubs` in `./omnibus`
 * `pkgconfig`, `libtool` (Can be installed by `$ brew install pkgconfig libtool`)
 * Own `/opt/crystal`, `/var/cache`.
 

omnibus/.ruby-version

@@ -1 +1 @@
-2.7.3
+3.2.2

omnibus/Gemfile.lock

@@ -125,4 +125,4 @@ DEPENDENCIES
   omnibus-software!
 
 BUNDLED WITH
-   2.2.16
+   2.4.22

omnibus/config/software/crystal.rb

@@ -84,7 +84,7 @@
   delete "#{output_bin}_arm64"
 
   block do
-    raise "Could not build crystal" unless File.exists?(output_bin)
+    raise "Could not build crystal" unless File.exist?(output_bin)
 
     if macos? || mac_os_x?
       otool_libs = `otool -L #{output_bin}`