Log Message:
p5-YAML-PP: update to 0.026.

0.026 2020-09-11 00:39:09+02:00

    - Add option 'duplicate_keys'. The default allows it for now and will
      change to forbid in the next release.

0.025 2020-09-06 22:14:07+02:00

    - Emitter: Fix indentation issues for non-default indents
    - Emitter: Add option 'width' for maximum columns
    - Improve error message for unhandled reftypes