[Snyk] Upgrade gatsby-source-filesystem from 5.8.0 to 5.13.1#224

cs-sagarmalve wants to merge 1 commit intomastercontentstack/gatsby-source-contentstack:masterfrom

snyk-upgrade-397249d259861254a9952611f5f3ea5fcontentstack/gatsby-source-contentstack:snyk-upgrade-397249d259861254a9952611f5f3ea5fCopy head branch name to clipboard