[Snyk] Upgrade gatsby from 5.0.0 to 5.15.0#1163

X-oss-byte wants to merge 1 commit intomasterX-oss-byte/gatsby-1:masterfrom

snyk-upgrade-858e8854330689440e9a7200541d3228X-oss-byte/gatsby-1:snyk-upgrade-858e8854330689440e9a7200541d3228Copy head branch name to clipboard