blog: early access builds for all releases

[sxa]

Description of change

New blog post with information about the early access builds which are now available for all JDK lines.

Notes for reviewers:

• I'm not sure if I like the wording in the "Why am I not seeing early access builds for the latest release?" section so if anyone has suggestions please say so. I will probably update this blog with some examples of this when JDK22 comes out since the current examples in that section are based on the RC build.
• I haven't included the github actions example code from the earlier blog here
• The JDK22 release candidate information is useful at this point in time but I suspect it may be worth removing it later one JDK22 has gone GA. As an alternative we could have a separate blog article about the release candidate availability.
• While this article says we have status posts to slack, we do not go into any further detail - if anyone things we should provide more then feel free to suggest it, although the format of the messages has changed in the last few weeks and so I didn't want to say any more on this.
• The examples on how to compare the contents of different builds uses _adopt suffix tags in our mirror repositories but does not explicitly explain what those are.

Checklist

• npm test passes
• documentation is changed or added (if applicable)
• permission has been obtained to add new logo (if applicable)
• contribution guidelines followed here

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e5359d0) 99.28% compared to head (dfb6b08) 99.28%.
Report is 33 commits behind head on main.

Additional details and impacted files

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[jerboaa]

Nice! I particularly like the way to retrieve older EA builds from the API (which is useful for regression analysis).

[sxa]

Nice! I particularly like the way to retrieve older EA builds from the API (which is useful for regression analysis).

Yeah I felt that was a really worthwhile thing to have in there, as we don't make the API as easy to consume as I'd like, but a few examples alongside use cases go a long way to helping with that I think.

[andrew-m-leonard]

looks good, thank you