feat: Ctx everywhere

[jorgejr568]

Ctx everywhere

References

• https://pkg.go.dev/context
• Ctx is the key, by Samuel Davidson

Why

Having context along with requests allows the client to control, check for timeouts, and cancel requests. This is especially important for brokers that have a message deadline before requeueing and for parallel processing.

How

• Added context to all requests from every module: Domains, ApiKeys, Emails
• Added one test for the Request module to check if the context is canceled to return an error
• Updated examples to show how to use context

Cons

• This is a huge breaking change, so it's a good idea to release a new major version.

Non-related changes that can be reverted

• Refactored the request factory to be more readable and don't have to declare the same variables twice.

[drish]

thanks a lot for the contribution @jorgejr568 and @gabrielcipriano , this is definitely a great improvement for the SDK. I'll spend sometime playing with the PR and running some local tests, overall it LGTM, should have it merged soon.