(OSPTE-132) Set 'allowed_push_host' & remove git publish

- Set allowed_push_host to only be Artifactory.
- Remove git publish workflow since we don't want git to publish to
internal Artifactory, we'll use Jenkins or a simple 'gem push' for
that.

vanagon.gemspec

@@ -17,17 +17,20 @@ Gem::Specification.new do |gem|
   gem.email    = '[email protected]'
   gem.homepage = 'http://github.com/puppetlabs/vanagon'
   gem.required_ruby_version = '>=2.3', '<4'
+  gem.metadata['allowed_push_host'] = 'https://artifactory.delivery.puppetlabs.net/artifactory/api/
+gems/rubygems__local'
 
-  gem.add_runtime_dependency('docopt')
+
+  gem.add_dependency('docopt')
   # Handle git repos responsibly
   # - MIT licensed: https://rubygems.org/gems/git
-  gem.add_runtime_dependency('git', '~> 1.13.0')
+  gem.add_dependency('git', '~> 1.13.0')
   # Parse scp-style triplets like URIs; used for Git source handling.
   # - MIT licensed: https://rubygems.org/gems/build-uri
-  gem.add_runtime_dependency('build-uri', '~> 1.0')
+  gem.add_dependency('build-uri', '~> 1.0')
   # Handle locking hardware resources
   # - ASL v2 licensed: https://rubygems.org/gems/lock_manager
-  gem.add_runtime_dependency('lock_manager', '>= 0')
+  gem.add_dependency('lock_manager', '>= 0')
   # Utilities for `ship` and `repo` commands
   # - ASL v2 licensed: https://rubygems.org/gems/packaging
   gem.add_runtime_dependency('packaging')