fix(ci): use skopeo for cross-arch docker push

docker load strips architecture metadata from arm64 images on amd64
hosts, causing both manifest entries to be amd64. Using skopeo copy
preserves the OCI image metadata faithfully. Fixes #28.

Merge pull request #25 from arrizer/fix/putio-folder-deletion

chore: next version is v0.10.4

chore: next release is v0.10.3

chore: next version is 0.10.2

chore: next release is v0.10.1

chore!: next version is v0.10.0

breaking changes incoming

chore: next release is v0.9.7

chore: improve logging

fix(rpc): progress calculation