Fix pinning version

When pinning version, an action of package resource should be :install.

http://docs.opscode.com/resource_package.html#actions

Action | Description
--- | ---
:install | Default. Use to install a package. If a version is specified, use to install the specified version of a package.
:upgrade | Use to install a package and/or to ensure that a package is the latest version.
Should wrap with `if node[:td_agent][:pinning_version]` and use correct action on both pinning or non-pinning?