(CAT-1248) Update Published Name and Owner

Gem is to be re-published under the name `puppetlabs-puppet-lint` in order to fully move it under the ownership of `Puppet`.
Author is not being touched.

Author: david22swan

puppet-lint.gemspec

@@ -2,7 +2,7 @@ $LOAD_PATH.push(File.expand_path('lib', __dir__))
 require 'puppet-lint/version'
 
 Gem::Specification.new do |spec|
-  spec.name = 'puppet-lint'
+  spec.name = 'puppetlabs-puppet-lint'
   spec.version = PuppetLint::VERSION.dup
   spec.homepage = 'https://github.com/puppetlabs/puppet-lint/'
   spec.summary = 'Ensure your Puppet manifests conform with the Puppetlabs style guide'
@@ -29,7 +29,6 @@ Gem::Specification.new do |spec|
     'Community Contributors',
   ]
   spec.email = [
-    'tim@sharpe.id.au',
     'modules-team@puppet.com',
   ]
   spec.license = 'MIT'