meta-*: bump poky from b9a67c0 to ce9f4ea in the layers group

Bumps the layers group with 1 update: poky.


Updates `poky` from `b9a67c0` to `ce9f4ea`

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

Signed-off-by: dependabot[bot] <[email protected]>