Upgrade to RCP 2024-03 and latest Nebula / NatTable releases

This means also upgrading to Java 17 in the build process at least, because RCP 2024-03 minimally requires Java 17. See #916 (closed) and !108.

• Clone 2024-03 release/update P2 repositories
  • https://www.simantics.org/update/2024-03
  • https://www.simantics.org/update/eclipse/updates/4.31
• Clone Nebula 3.1.1 P2 repo
  • https://www.simantics.org/update/nebula/releases/3.1.1/release
  • https://www.simantics.org/update/nebula/releases/3.1.1/incubation
• Clone Nattable 2.3.0 P2 repo
  • https://www.simantics.org/update/nebula/nattable/releases/2.3.0/repository
• Clone 2024-03 SimRel Orbit P2 repo
  • https://www.simantics.org/update/tools/orbit/simrel/orbit-aggregation/release/4.31.0
• Switch .tpd files to use these
• Revert #1098 workaround once the RCP is updated