[Snyk] Security upgrade gatsby from 5.0.0 to 5.4.0#245

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monizb wants to merge 1 commit intomasterfrom snyk-fix-9abbb78eea9d1f13d154fbe700ece052

+3,465-1,009

Commits on May 25, 2023

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