docs(nx-dev): update Java landing page to include Maven support #33157
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Current Behavior
The Java landing page at nx.dev/java only mentions Gradle support and indicates that Maven support is coming soon.
Expected Behavior
The Java landing page should reflect that Maven is now available alongside Gradle.
https://nx-dev-git-mvn-follow-nrwl.vercel.app/java
Related Issue(s)
Updates the documentation to reflect the Maven plugin introduced in #32947
Changes:
@nx/gradleand@nx/maven/docs/technologies/java/{gradle,maven}/introduction