CloudEventMessageUtils.getTime cannot be cast exception

[SheheryarAamir]

Describe the bug
CloudEventMessageUtils.getTime(<>) through below error

class java.lang.String cannot be cast to class java.time.OffsetDateTime (java.lang.String and java.time.OffsetDateTime are in module java.base of loader 'bootstrap'). 

I think we should use OffsetDateTime.prase(<>) instead

I dont even able to find a test against this method getTime

Sample
Its a simple issue so i dont have a sample to share, in case its required I will create pull request to add unit test.