chore: adopt the NAPALM driver standard

- CI moves to .gitea/workflows/ci.yml and calls the shared driver workflow
  of NAPALM/driver-standard; .github/ is gone. napalm-device-types comes
  from git until 4.22.0 (AptProxyMixin) is on PyPI; the floor stays at
  4.22.0.
- requires-python >=3.10 (napalm-device-types needs it), py.typed, SPDX
  license string, a dev extra with floors (pytest-mock and responses are
  dropped: no test uses them), links to git.netork.io (README included).
  pytest no longer adds --cov by itself; CI passes it.
- mypy strict for the package; exempt for now, with 204 errors between
  them: napalm_proxmox.config_mixin, .driver, .interfaces_mixin,
  .lldp_mixin, .routing_mixin, .sdn_mixin, .system_mixin, .utils,
  .vm_contract_mixin, .vm_mixin and .vm_provision_mixin. They are recorded
  in the quality baseline with the long and complex functions and the two
  unannotated public methods.
- Coverage floor 68 % (measured 68.94 %).

CHANGELOG.md

@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+- The driver follows the NAPALM driver standard
+  (https://git.netork.io/NAPALM/driver-standard): CI on Gitea runs ruff, mypy, the
+  tests on Python 3.10–3.13 and at the lowest declared versions, bandit, pip-audit and
+  a build check, and a release tag publishes to PyPI. The package now ships `py.typed`.
+  **Python 3.9 is no longer supported**; napalm-device-types never ran on it.
+- Exceptions the driver deliberately ignores (closing the node's SSH session, the
+  `is_alive()` probe) are now logged at debug level.
+- The project links point at git.netork.io.
+
 ### Added
 - apt's proxy (napalm-device-types' `AptProxyMixin`, NetOrk/netork#1397): `get_package_proxy()`, `get_package_proxy_report()`, `check_package_proxy(url, expect)` and the fix `configure_package_proxy(url)`, as on any Debian host. The node is logged in as root, so the file is written and other proxy lines are commented out over the exec path. Requires napalm-device-types 4.22.0; version 0.7.0.
 - `get_service_packages()` (napalm-device-types' `ServicePackagesMixin`, NetOrk/netork#1236): which installed packages each systemd unit of the node is made of — the one shipping its unit file and the one shipping its `ExecStart` binary. Read-only, over the exec path. Requires napalm-device-types 4.20.0; version 0.6.0.