Issue with backslash on forestadmin-schema.json

[clavat]

Expected behavior

Wellformed .forestadmin-schema.json

Actual behavior

Malformed .forestadmin-schema.json because it try to espace backslash from schema.rb

Failure Logs

This come from my Production server when I try to deploy ForestAdmin for the first time.

2023-05-25 15:03:33.923134771 +0200 CEST [postdeploy-8568] [2023-05-25 13:03:33] Forest 🌳🌳🌳 The content of .forestadmin-schema.json file is not a correct JSON. 2023-05-25 15:03:33.923138396 +0200 CEST [postdeploy-8568] [2023-05-25 13:03:33] Forest 🌳🌳🌳 The schema cannot be synchronized with Forest Admin servers. 2023-05-25 15:03:33.947271238 +0200 CEST [postdeploy-8568] /app/vendor/ruby-2.7.7/lib/ruby/2.7.0/tsort.rb:228:in block in tsort_each'
2023-05-25 15:03:33.947272161 +0200 CEST [postdeploy-8568] /app/vendor/ruby-2.7.7/lib/ruby/2.7.0/tsort.rb:431:in each_strongly_connected_component_from'

Context

In my project I have a jsonb column with a default value at database level, this default value include a backslash followed by a double quote, it look like this :
t.jsonb "quote_char", default: [{"value"=>"\""}], null: false

• Package Version: 8.0.8
• Rails Version: 6.1
• Database Dialect: SQL
• Database Version: PostgreSQL 13

[clavat]

FYI, I'd monkey patch your lib this way to make things work on our project :

# frozen_string_literal: true

module ForestLiana
  # This class is used as a file generator for the ForestLiana gem.
  class SchemaFileUpdater
    def perform
      File.open(@filename, 'w') do |file|
        # NOTICE: Escape '\' characters to ensure the generation of valid JSON files. It fixes
        #         potential issues if some fields have validations using complex regexp.
        file.puts pretty_print({ # rubocop:disable Rails/Output
                                 collections: @collections,
                                 meta: @meta
                               }).gsub(/[^\\](\\)[^\\"]/) { |x| x.gsub(Regexp.last_match(1), '\\\\\\') }.gsub(/("\\\\")/, '"\\\\\\\\\"')
      end
    end
  end
end