(PUP-11844) Bump required ruby version to >= 3.1.0

Update the required ruby version in project_data.yaml to match what's in
.gemspec. The former is what's used to build & ship platform specific puppet
gems.

Author: joshcooper

ext/project_data.yaml

@@ -15,7 +15,7 @@ gem_executables: 'puppet'
 gem_default_executables: 'puppet'
 gem_license: 'Apache-2.0'
 gem_forge_project: 'puppet'
-gem_required_ruby_version: '>= 2.7.0'
+gem_required_ruby_version: '>= 3.1.0'
 gem_required_rubygems_version: '> 1.3.1'
 gem_runtime_dependencies:
   facter: ['>= 4.3.0', '< 5']