2.18.0

What's Changed

• chore: clarify argo conditionals exception by @saikonen in #2569
• Fix idiotic typo in exception handling by @romain-intel in #2567
• Fix an issue with storing sub-configs. by @romain-intel in #2566
• Fix save function to write package blob correctly by @savingoyal in #2575
• disallow conditional to join directly by @mt-ob in #2571
• Bump metaflow version to 2.18.0 by @savingoyal in #2577

Full Changelog: 2.17.5...2.18.0