Format Conan package manager in Dependency List

Update the Dependency List formatter in order
to properly format the Conan package type.

changelogs/unreleased/225218-format-conan-package-manager.yml

+---
+title: Format Conan package manager in Dependency List
+merge_request: 40811
+author:
+type: added

ee/lib/gitlab/ci/parsers/security/formatters/dependency_list.rb

@@ -62,6 +62,8 @@ module Gitlab
                 'Java (Maven)'
               when 'composer'
                 'PHP (Composer)'
+              when 'conan'
+                'C/C++ (Conan)'
               else
                 package_manager
               end

ee/spec/lib/gitlab/ci/parsers/security/formatters/dependency_list_spec.rb

@@ -60,6 +60,7 @@ RSpec.describe Gitlab::Ci::Parsers::Security::Formatters::DependencyList do
       'pip'      | 'Python (pip)'
       'maven'    | 'Java (Maven)'
       'composer' | 'PHP (Composer)'
+      'conan'    | 'C/C++ (Conan)'
       ''         | ''
     end