Release 5.2.0

Removed

• Java 8 version support, by @HardNorth
• Java 11 version support, by @HardNorth

Changed

• JUnit 5 agent version updated on 5.2.0, by @HardNorth
• Client version updated on 5.2.2, by @HardNorth
• Switch on Java 17 compile target, by @HardNorth