[Snyk] Security upgrade yeoman-generator from 0.19.2 to 0.20.0#14

snyk-bot wants to merge 1 commit intomasternahidf/code-generator:masterfrom

snyk-fix-75c67b191550b19ad2dfc8573ee7840dnahidf/code-generator:snyk-fix-75c67b191550b19ad2dfc8573ee7840dCopy head branch name to clipboard