sysutils/zrepl-dsh2dsh: update to 0.8.5

Changelog: https://github.com/dsh2dsh/zrepl/releases/tag/v0.8.5

New configuration for control and prometheus services. Example:

listen:

1. control socket for zrepl client, like zrepl signal or zrepl status.
2. unix: "/var/run/zrepl/control"
   1. unix_mode: 0o660 # write perm for group control: true
3. Export Prometheus metrics on http://127.0.0.1:8000/metrics
4. addr: "127.0.0.1:8000"
   1. tls_cert: "/usr/local/etc/zrepl/cert.pem"
   2. tls_key: "/usr/local/etc/zrepl/key.pem" metrics: true

One of addr or unix is required or both of them can be configured. One of
control or metrics is required or both of them can be configured too.
Everything else is optional. For backward compatibility old style configuration
works too.

PR: 282054