Update RPM metadata to use public URL
Update RPM metadata to use public URL

This patch changes the URL used by the EZBake template for RPM spec files from `http://github.com/puppetlabs/ezbake`, which is not publicly accessible, to `http://puppetlabs.com`, which matches the Homepage used by the template for Debian control files.
puppetlabs/ezbake,puppetlabs/ezbake,puppetlabs/ezbake