CAMEL-22544: jbang dependency update supports multi-file and --scan-routes

- Accept multiple target files (pom.xml or Java source files with //DEPS)
- Add --scan-routes flag to sync dependencies from route definitions:
  - Manages only org.apache.camel dependencies
  - Preserves non-Camel dependencies
  - Removes unused Camel dependencies
  - Idempotent on re-execution
- Route files (YAML, XML) passed as arguments are used as source files
  for the export pipeline dependency resolution
- In scan-routes mode, Camel //DEPS in Java target files are stripped
  before export to prevent stale deps from being resolved

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: gnodet