The native store of oras-credentials-go currently depends on github.com/docker/docker-credential-helpers to interact with docker credential helper binaries and does not support context so that it cannot be cancelled when executing the helper binraries.

We should implement the native store to interact with the helper binaries directly according to the protocol with context support.

Contributors can leverage exec.CommandContext for context support for executing commands.

Note The dependency on golang.org/x/sys/execabs is not required since the security patch is enforced since go 1.19 (see doc).

See also: #18 (comment)