Fix webhook verification without Buffer#1950
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Summary
Bufferdecoding in webhook signature verification with the existing base64 and UTF-8 helpers.globalThis.Bufferwhile WebCrypto is available.Why
Runtimes with WebCrypto but no Node
Buffercould pass the crypto capability check and then crash while decoding the webhook secret or signature.Validation
./node_modules/.bin/jest tests/api-resources/webhooks.test.ts --runInBand./node_modules/.bin/prettier --check src/resources/webhooks/webhooks.ts tests/api-resources/webhooks.test.ts./node_modules/.bin/eslint src/resources/webhooks/webhooks.ts tests/api-resources/webhooks.test.ts./scripts/build./node_modules/typescript/bin/tsc