New branch adjustments

POM

In the root POM, adjust Quarkus version:

    <properties>
        <quarkus.version>3.2.6.Final</quarkus.version>
        ...
    </properties>

code.quarkus testing

• Use code.quarkus.redhat.com for CI runs
  • example: https://github.com/quarkus-qe/quarkus-startstop/pull/312/commits/84caa5e5b6fc59a07dead7af8b8f1e3a633d112f
• Run site checks and download applications from relevant stream
  • example: https://github.com/quarkus-qe/quarkus-startstop/pull/320