meta-*: bump poky from f16cffd to ad597f4 in the layers group

Bumps the layers group with 1 update: poky.


Updates `poky` from `f16cffd` to `ad597f4`

---
updated-dependencies:
- dependency-name: poky
  dependency-version: ad597f4a54ec5b51677160d537b87b1b7e3828db
  dependency-type: direct:production
  dependency-group: layers
...

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Author: dependabot[bot]