[Snyk] Security upgrade astro from 4.15.4 to 4.16.18#15

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albertchambers wants to merge 1 commit intomasterfrom snyk-fix-5e712df17401b62b612e318532902ea5

+610-528

Commits on Dec 22, 2024

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