Apply Jenkins plugin standards

[NotMyFault]

The change proposed applies the standards for Jenkins plugins and helps to diagnose build and release issues, given the plugin doesn't build on ci.jenkins.io at all at the moment.

I've seen your post on the mailing list and decided to file a quick PR with a small QoL improvement towards the plugin :)

[sbobin]

Thanks Alex for your help! Very much appreciated!

[sbobin]

Hi Alex!

I have got some questions about your config changes I just merged.

The following action ran fine on the JenkinsCI account for my plugin: https://github.com/jenkinsci/mathworks-polyspace-plugin/actions/runs/8246795872

I don't have a clear understanding on how it works but I can see the same action has run on the Mathworks account for my plugin (main repo) and I receveid an email notification. But it failed: https://github.com/mathworks/mathworks-polyspace-plugin/actions/runs/8246811591

Note that I tried to rerun the job. But it still fails.

What should I do with it? Should I care? Should I fix? How should I fix?

Moreover, I have tried to deploy a new version of my plugin by running "mvn -e -X release:prepare release:perform" and it failed as well (log attached). Is it related with the config changes your proposed? How can I fix?

Thanks!

Stephane

release.log

[sbobin]

LGTM