v6.2.2

Fixed

• Fixed self-joins with join conditions (internal issue #199)
• Upgrade to rdfhdt to 3.0.10 (issue #215)
• Improve docs on deduplication (issue #214)
• Handle plain old Java Arrays as well for FnO return values
• Update dependency to idlab-functions-java, fixing issue #218

Changed

• Dockefile: switched to Eclipse OpenJDK Docker base image because OpenJDK is deprecated
• CI: dropped GitHub release automation
• CI: verify if token is valid