feat(ubuntu) Add support for Ubuntu plucky (25.04)

[DmitriyLewen]

Description

Ubuntu released ubuntu 25.04 (plucky) - https://releases.ubuntu.com/plucky/

Required changes:

• [ ] Create a PR to add Ubuntu 25.04 to Trivy-db.
  • Add new release into mapping. (If i found correctly - it should be plucky, but better to recheck this info)
  • build new trivy-db (make build, make db-build, make db-compact commands will help you)
  • add to PR description screenshot confirming that new trivy-db contains advisories for Ubuntu 25.04.
• [ ] Create a PR to add EOL dates for Ubuntu 25.04 to Trivy.
  • Add EOL date for 25.04 into ubuntu eol dates.
  • overwrite trivy-db using trivy-db from previous point and scan ubuntu 25.04 image to check:
    • Trivy correctly detects vulnerabilties for 25.04
    • Trivy doesn't show warning about EOL dates.

[knqyf263]

@DmitriyLewen Could you write in detail which files need to be changed and so on? I think this would be a good first issue for someone who wants to contribute to Trivy, so we can wait and see if someone is interested.