chore: adopt the NAPALM driver standard

- CI moves to .gitea/workflows/ci.yml and calls the shared driver workflow
  of NAPALM/driver-standard: conformance, ruff, strict mypy, tests on
  3.10-3.13 and at the lowest declared versions, bandit, pip-audit, build,
  and on a release tag the upload to PyPI.
- tests/quality_baseline.json records today's long and complex functions
  and the one file over 1000 lines; they may shrink, not grow.
- Coverage floor 95 % (measured 95.15 %).
- CHANGELOG.md starts here; project links point at git.netork.io; the
  license is the SPDX string PEP 639 wants.

tests/quality_baseline.json

@@ -0,0 +1,39 @@
+{
+ "coverage_floor": 95.0,
+ "function_complexity": {
+  "napalm_device_types/_ucd_metrics.py::build_if_metrics": 20,
+  "napalm_device_types/_ucd_metrics.py::collect_ucd_metrics": 17,
+  "napalm_device_types/host_firewall.py::_iptables_rule": 11,
+  "napalm_device_types/host_firewall.py::_module_match": 13,
+  "napalm_device_types/host_firewall.py::_module_options": 14,
+  "napalm_device_types/host_firewall.py::_nft_field": 15,
+  "napalm_device_types/host_firewall.py::_nft_match": 12,
+  "napalm_device_types/host_firewall.py::_nft_rule": 16,
+  "napalm_device_types/host_firewall.py::_parse_nft": 14,
+  "napalm_device_types/host_firewall.py::rule_text": 14,
+  "napalm_device_types/host_status.py::_reboot": 12,
+  "napalm_device_types/lag.py::add_lag_interfaces": 11,
+  "napalm_device_types/listening.py::parse_listening_sockets": 13,
+  "napalm_device_types/service_clusters.py::_patroni": 11,
+  "napalm_device_types/ssh_server.py::plan_ssh_hardening": 38,
+  "napalm_device_types/virtual_ips.py::_keepalived": 12
+ },
+ "function_lines": {
+  "napalm_device_types/_ucd_metrics.py::collect_ucd_metrics": 119,
+  "napalm_device_types/dhcp.py::DhcpServerMixin.diff_dhcp_reservations": 54,
+  "napalm_device_types/dhcp.py::DhcpServerMixin.diff_dhcp_subnets": 60,
+  "napalm_device_types/firewall_rules.py::FirewallRuleMixin.diff_firewall_rules": 56,
+  "napalm_device_types/hypervisor.py::HypervisorDriver.create_vm_from_cloud_init": 84,
+  "napalm_device_types/hypervisor.py::HypervisorDriver.get_vm_config": 77,
+  "napalm_device_types/ssh_server.py::OpenSshServerMixin.harden_ssh_server": 52,
+  "napalm_device_types/ssh_server.py::plan_ssh_hardening": 60,
+  "napalm_device_types/storage.py::StorageDriver.get_volumes": 52,
+  "napalm_device_types/switch.py::SwitchDriver.get_dot1x_ports": 51,
+  "napalm_device_types/switch.py::SwitchDriver.get_poe_status": 63
+ },
+ "mypy_relaxed": [],
+ "python_file_lines": {
+  "napalm_device_types/models.py": 1504
+ },
+ "untyped_public": []
+}