fix: adapt to napalm-device-types 4.7

napalm-device-types 4.7 changed three things this driver depends on:

- parse_dnf_security needs the "__DNF_RC=<status>" line that
  DNF_SECURITY_COMMAND prints and raises ValueError without it or when dnf
  failed. The yum security query had no such line, so listing updates on
  any yum host raised. _YUM_SECURITY_COMMAND now prints the marker the same
  way ("{ ...; echo __DNF_RC=$?; } | cat"). _rpm_security_names checks
  __DNF_RC itself and turns a failed query, or output cut short before the
  marker, into None (security unknown) rather than "no advisories" or an
  exception.
- OSDriver.get_users was renamed to get_os_users, since NAPALM's own
  get_users has another shape. LinuxDriver.get_users is now get_os_users
  with the same return value.
- run_on_transport reads an exec channel to EOF after its exit status
  arrives; the tests' fake channels gain recv/recv_stderr for that.

Require napalm-device-types>=4.7.1 and bump the version to 0.6.0.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "napalm-linux"
-version = "0.5.0"
+version = "0.6.0"
 description = "NAPALM driver for generic Linux systems via SSH"
 readme = "README.md"
 requires-python = ">=3.9"
@@ -37,7 +37,7 @@ classifiers = [
 ]
 dependencies = [
     "napalm>=4.0",
-    "napalm-device-types>=4.5.0",
+    "napalm-device-types>=4.7.1",
     "netmiko>=4.0.0",
     "paramiko>=5.0.0",  # CVE-2026-44405
 ]