Runtime: Add support for new Nested JAR URLs used by Spring Boot 3.2
Add support for new nested JAR URLs like used by Spring Boot 3.2 to CommonsRuntime and utils.
New URL syntax: jar:nested:/rhelpserver-4/org.eclipse.statet.rhelp.server.jar/!BOOT-INF/lib/org.eclipse.statet.jcommons.util-4.9.0-SNAPSHOT.jar!/