[Snyk] Security upgrade gatsby from 5.0.0 to 5.4.0#8

Merged

monizb merged 1 commit intomasterfrom snyk-fix-c54fc3d76ee32c5e758df95be89b63ca

Feb 16, 2023

+2,575-519

Commits on Feb 16, 2023

fix: starters/gatsby-starter-theme/package.json & starters/gatsby-starter-theme/package-lock.json to reduce vulnerabilities
snyk-bot
committed