Add Awaits extensions similar to Runs to await suspend functions until cancelled

[SimonMarquis]

And adding kotlinCoroutinesTest dependency for testing purposes.

Examples:

coJustAwait { mock.coOp() }
coEvery { mock.coOp() } just awaits
coEvery { mock.coOp() } answers { 1 } andThenJust awaits

See discussion #924

[SimonMarquis]

👋 Hi, not sure why this error happens.
It works fine on my local env, could this be a caching issue?

Failures are all using javaToolchainTestVersion=19

FAILURE: Build failed with an exception.

* Where:
Initialization script '/home/runner/.gradle/init.d/build-result-capture.init.gradle' line: 76

* What went wrong:
Could not open dsl generic class cache for script '/home/runner/.gradle/init.d/build-result-capture-service.plugin.groovy' (/home/runner/.gradle/caches/7.5.1/scripts/9y1w1goaggjti8kw09okbawrx).
> BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 63

https://github.com/mockk/mockk/actions/runs/3160090370/jobs/5159103278#step:5:20

[SimonMarquis]

Latest Gradle 7.5.1 does not seem to be compatible with the newly released Java 19.

Java 19 and later versions are not yet supported.
https://docs.gradle.org/current/userguide/compatibility.html

CI did not run completely (was cancelled) on the commit upgrading Java version: 985c6fe

What should we do?

• Revert to Java 18 until Gradle officially supports it?
• Use an nightly Gradle version (or 7.6-rc1) and see if it works?
• Ignore those errors until Gradle officially supports Java 19?

[Raibaz]

I'd remove support for java 19 until gradle supports it.

I think you can do it in this PR.

Thanks for looking into it!

[Raibaz]

Code LGTM, can you please just add an example usage of just Awaits and coJustAwait in the documentation in README.md?

[SimonMarquis]

@Raibaz tell me if the coJustAwait example is good enough.
Also, I've flagged these new APIs as (available since v1.13.3) but I'll let you decide for the new version name.

[Raibaz]

That's perfect, thanks a lot!