feat: --container-options (#1462)

* feat: `--container-options`

This deprecates the following options
- `--privileged`
- `--container-cap-add`
- `--container-cap-drop`
- `--container-architecture`
- `--userns`

* Merge binds/mounts, add desc

* avoid linter error

* fix: apply options to step env / deprecate warning

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/container/docker_run.go

@@ -411,10 +411,16 @@ func (cr *containerReference) mergeContainerConfigs(ctx context.Context, config
 
 	logger.Debugf("Custom container.HostConfig from options ==> %+v", containerConfig.HostConfig)
 
+	hostConfig.Binds = append(hostConfig.Binds, containerConfig.HostConfig.Binds...)
+	hostConfig.Mounts = append(hostConfig.Mounts, containerConfig.HostConfig.Mounts...)
+	binds := hostConfig.Binds
+	mounts := hostConfig.Mounts
 	err = mergo.Merge(hostConfig, containerConfig.HostConfig, mergo.WithOverride)
 	if err != nil {
 		return nil, nil, fmt.Errorf("Cannot merge container.HostConfig options: '%s': '%w'", input.Options, err)
 	}
+	hostConfig.Binds = binds
+	hostConfig.Mounts = mounts
 	logger.Debugf("Merged container.HostConfig ==> %+v", hostConfig)
 
 	return config, hostConfig, nil