I don't see any packages in pmaports that actually depend on dhcpcd, and
it hasn't been updated in 3 years... (upstream is at version 10.0.0
now...)
NOTE by ollieparanoid: networkmanager in Alpine used dhcpcd before, so
it was part of our default network stack. But that isn't the case
anymore since 2020:
db03cedea9
f8d91ebdfd