ci: add workflow for rust bench crate

[jmayclin]

The bench crate contains interop testing that would be useful to have in our ci runs. This commit adds a github workflow to run that. It also adds an options to generate the bindings without running the tests, since the tests take several minutes to run.

Description of changes:

• adds CI workflow for bench crate
• adds option to skip tests in bindings generation

Testing:

The workflow should pass.

After this workflow has been added, we should make it a required success for merging.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[lrstewart]

I mentioned this concern a while back, but you might have forgotten: if I see the name "bench / benchmark tests", I don't assume interop testing. I assume performance benchmarks. Does this actually run any performance benchmarks? Or is it just running interop tests?

[jmayclin]

https://github.com/aws/s2n-tls/blob/main/bindings/rust/bench/src/harness.rs#L426

It runs these tests, which for all of OpenSSL, Rustls, s2n-tls, will test the product of

• handshake type
• cipher suite
• kx type
• cert type

Also session resumption interop tests.

And then checks that the certificate file paths are valid.

So this doesn't do any performance benchmarks.

Do you have any name suggestions? I was just sticking to the lowest denominator in that these are literally the tests in the bench crate. The longer term plan that has been tossed around is that we will shift all of our test harnesses to use this, at which point these tests could live in the integration crate?

[github-actions]

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