package/cog: bump to version 0.18.1

This is a small bugfix release which solves a build issue, a memory
leak, and fixes touch input on rotated screens with the DRM/KMS module.
Release notes:

  https://wpewebkit.org/release/cog-0.18.1.html

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2 files changed