* chore(example): Replaced body parser with express JSON parser (cloudevents#334)

Signed-off-by: Philip Hayes <phayes@redhat.com>

Co-authored-by: Philip Hayes <phayes@redhat.com>

* fix: upgrade cloudevents from 3.0.1 to 3.1.0 (cloudevents#335)

Snyk has created this PR to upgrade cloudevents from 3.0.1 to 3.1.0.

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

See this project in Snyk:
https://app.snyk.io/org/lance/project/cb2960b0-db0c-4e77-9ab2-e78efded812e?utm_source=github&utm_medium=upgrade-pr

Co-authored-by: snyk-bot <snyk-bot@snyk.io>
Signed-off-by: Lucas Holmquist <lholmqui@redhat.com>

* feat: add a constructor parameter for loose validation (cloudevents#328)

* feat: add a constructor parameter for loose validation

This commit adds a second, optional boolean parameter to the `CloudEvent`
constructor. When `false` is provided, the event constructor will not
perform validation of the event properties, values and extension names.

This commit also modifies the ValidationError class so that the error message
string includes the JSON.stringified version of any schema validation
errors. It also makes the HTTP.toEvent() function create CloudEvent
objects with loose/no validation.

Incorporates comments from cloudevents#328

Fixes: cloudevents#325

Signed-off-by: Lance Ball <lball@redhat.com>

Co-authored-by: Philip Hayes <philip@deewhy.ie>
Co-authored-by: Philip Hayes <phayes@redhat.com>
Co-authored-by: snyk-bot <snyk-bot@snyk.io>
Co-authored-by: Lance Ball <lball@redhat.com>