There are zero code changes required to support v.0.13.0 so we elect to
use a range dependency to make the upgrade path for downstream users
more pleasant.
Upgrade the dependency of `hashes` to be either v0.12.0 or v0.13.0
Use v0.13.0 in the recent/minimal lockfiles.
A while back we added two lock files that were to track dependencies of
two successful test runs, one with a minimal set of dependencies and one
with a recent set of dependencies (ie, recent dependency versions). We
never used these lock files in CI however.
In preparation for using the lock files in CI, and in order to be
uniform with `rust-bitcoin`, move the lock files to the crate root and
rename them to:
- Cargo-minimal.lock
- Cargo-recent.lock