support aws session token in sms and kms clients

[jing-emma]

This PR adds the support for aws session token in sms and kms clients to address the issue #85

[CLAassistant]

All committers have signed the CLA.

[jing-emma]

@joanlopez @codebien Thank you for reviewing and approving the PR. I saw the build pipeline succeeded. Does that mean the new version 0.11.1 was released? where do I find the released js files. I thought I could use https://jslib.k6.io/aws/0.11.1/ssm.js. But I got 404.

[joanlopez]

Does that mean the new version 0.11.1 was released? where do I find the released js files. I thought I could use https://jslib.k6.io/aws/0.11.1/ssm.js. But I got 404.

Ha! That's a very fair question, that we're just right now discussing and re-defining (see #89). The process of releasing a new version is described in the CONTRIBUTING guidelines, and requires some manual steps that end up with the addition of the new build into https://github.com/grafana/jslib.k6.io repository, and a deployment to make it available in jslib.k6.io. However, we haven't published a new release with your changes yet, and indeed we haven't do it for a few more changes already available in main.

I hope to get that discussion resolved, and hopefully sooner rather than later we'll publish a new release (either v0.11.1 or v0.12.0). But so far, I guess you should be able to directly point the raw files of the build, hosted in the repository (e.g. https://raw.githubusercontent.com/grafana/k6-jslib-aws/main/build/ssm.js), as per what's commented here.

Apologies for the inconveniences, hopefully sometime in the near future we'll automate this process.
Thanks for your comprehension, and again thanks for your contribution!