apply patch in backports and upgrade to 0.31.5

Author: davidbeig

Gemfile

@@ -4,7 +4,7 @@ source "https://rubygems.org"
 
 ruby RUBY_VERSION
 
-DECIDIM_VERSION = { github: "openpoke/decidim", branch: "0.31-backports" }.freeze
+DECIDIM_VERSION = { github: "openpoke/decidim", branch: "fix/empty_attachments_importer_0.31" }.freeze
 gem "decidim", DECIDIM_VERSION
 gem "decidim-conferences", DECIDIM_VERSION
 gem "decidim-decidim_awesome", github: "decidim-ice/decidim-module-decidim_awesome", branch: "main"
@@ -13,11 +13,11 @@ gem "decidim-pokecode", github: "openpoke/decidim-module-pokecode", branch: "mai
 gem "decidim-templates", DECIDIM_VERSION
 gem "decidim-term_customizer", github: "openpoke/decidim-module-term_customizer", branch: "main"
 
-gem "bootsnap", "~> 1.4"
-gem "puma", ">= 6.3.1"
+gem "bootsnap"
+gem "puma"
 
 group :development, :test do
-  gem "byebug", "~> 11.0", platform: :mri
+  gem "byebug"
 
   gem "brakeman"
   gem "decidim-dev", DECIDIM_VERSION