CI: Build with recent JDKs and Semeru

[bmarwell]

• Build with recent JDKs needed to test with more recent Java versions, this is a no-brainer.
• Build with IBM Semeru is a bit special. In contrast to Zulu and Temurin, it is not based on hotspot but Eclipse OpenJ9 and might have different encryption settings: algorithm aliases, defaults, etc.
  Therefore I consider it highly valuable for anything security-related.

[bmarwell]

Closed by 2491201