feat: upgrade cloudevents from 7.0.2 to 8.0.0 (#304)

Snyk has created this PR to upgrade cloudevents from 7.0.2 to 8.0.0.

See this package in npm:
https://www.npmjs.com/package/cloudevents

See this project in Snyk:
https://app.snyk.io/org/nodeshift-agg/project/53f94480-e7ae-41d2-985c-270fae345664?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

package.json

@@ -33,7 +33,7 @@
   "types": "index.d.ts",
   "bin": "./bin/cli.js",
   "dependencies": {
-    "cloudevents": "^7.0.2",
+    "cloudevents": "^8.0.0",
     "commander": "^11.0.0",
     "death": "^1.1.0",
     "fastify": "^4.20.0",