fix: opt out of the SSH hardening inherited from napalm-linux

OpenMediaVault generates sshd_config from its own database; a drop-in
netOrk wrote would be dropped by the next apply of the SSH settings
without a word. harden_ssh_server = None makes netOrk's capability probe
answer no.

Requires napalm-linux 0.5.0; bumps to 0.1.1. NetOrk/netork#1027

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "napalm-openmediavault"
-version = "0.1.0"
+version = "0.1.1"
 description = "NAPALM driver for OpenMediaVault NAS (SSH)"
 readme = "README.md"
 requires-python = ">=3.9"
@@ -25,7 +25,7 @@ classifiers = [
 dependencies = [
     "napalm>=4.0",
     "napalm-device-types>=0.3.0",
-    "napalm-linux>=0.1.0",
+    "napalm-linux>=0.5.0",
 ]
 
 [project.optional-dependencies]