[Snyk] Security upgrade @govtechsg/open-attestation from 6.7.0 to 6.9.5#20

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yanlow wants to merge 1 commit intomasterfrom snyk-fix-b88795eaedee9610af60111bc91ae8a8

+45-198

Commits on Jul 23, 2024

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