[V3] posibility to increase Provider state callback timeout

[individual-it]

Checklist

Before making a feature request, I have:

• Searched the issues to check that this feature hasn't been requested before
• Checked the documentation to see if it is possible to do what I want already

Feature description

The timeout for setting states seems to be fixed to 1000ms it would be great to be able to increase that timeout

Use case

depending on the provider, the state that need to be set and the hardware it might take longer than 1sec to set the state e.g when cleaning up or resetting a provider

[individual-it]

If I'm not wrong that was implemented by @rholshausen for pact-reference in pact-foundation/pact-reference@4afa86a

[individual-it]

looks like there is work done in this issue before I've even created it e.g. 727968c 👍

so just waiting for the next release 💤

[uglyog]

Still need someone to do this bit:

            // TODO: add this in once the downstream lib has been released
            // timeout: self.options.callback_timeout

Hopefully @mefellows does it :-D

[individual-it]

@uglyog the current master of pact-js already helps because it has 10sec timeout hardcoded ;-)

[mefellows]

On it. I'll have this flag in the next release (tonight, assuming I don't mess up the release step).

[individual-it]

fixed by e891fcc