Improve 'findability' of Early Access Builds

[smlambert]

We want to ensure that developers needing early access builds can find them and that they are named correctly (we no longer build 'nightly', we build based on the upstream repo having a new tag available.

Repeating content from https://github.com/adoptium/ci-jenkins-pipelines/issues/1256#issuecomment-3223927562 for convenience.

Right now its a little awkward / non-intuitive to find EA builds, but you can:

• go to https://adoptium.net/temurin/releases
• scroll down to find "Other ways to download Temurin"
• Find "Other Downloads" and click on the "Nightly Builds" link
• Takes you to https://adoptium.net/temurin/nightly

• Suggest to renaming the "Nightly Builds" link to "Early Access Builds"
• Possibly changing the page URL from https://adoptium.net/temurin/nightly to https://adoptium.net/temurin/earlyaccess

Is there a way to represent EA builds making them easier to locate? Doesn't seem correct to have them in the section called "Other ways to download Temurin".

[Peksa]

As a frequent tester of EA builds, perhaps the two more "official" release candidate tags could also be highlighted somehow? It seems Corretto follows Oracle's release candidate tags and publishes EA builds for the equivalent tags: https://github.com/corretto/corretto-25/releases https://jdk.java.net/25/

To me the early access builds from Adoptium are extremely useful, especially since most other providers only publish the release candidates (Oracle, Amazon), or sometimes only for certain platforms (shipilev's linux/glibc builds).