[Snyk] Security upgrade metalsmith from 2.3.0 to 2.5.0#70

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-d22a669de926c2c44031b76d52eac28c

+175-215

Commits on Jun 11, 2022

fix: package.json & package-lock.json to reduce vulnerabilities
snyk-bot
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