icu depends_dev causes build issues.
commit e66abfb4 introduces a depends on a specific version of icu.
Maybe there was a valid reason for including a specific version of the package in depends_dev? Instead of just making it depends_dev=$pkgname"?
This now creates issues like for example: https://stackoverflow.com/questions/59547309/alpine-update-to-icu-libs-causing-dependency-conflicts/59883590#59883590