chore: declare napalm-device-types, stop tracking build artefacts

pyproject.toml did not list napalm-device-types although the code
imports it (CI installed it by hand); it now requires 4.13, whose fix
templates the next commit uses. Seven .pyc and six egg-info files were
tracked; they go, and a .gitignore keeps them out.

Closes #11

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "napalm-hpe-aruba-procurve"
-version = "0.3.0"
+version = "0.4.0"
 description = "NAPALM driver for HPE/Aruba ProCurve switches with auto-detecting transport (REST API, SSH, legacy SSH, Telnet)"
 readme = "README.md"
 license = { text = "Apache-2.0" }
@@ -26,6 +26,7 @@ classifiers = [
 ]
 dependencies = [
     "napalm>=4.0.0",
+    "napalm-device-types>=4.13.0",
     "netmiko>=4.0.0",
     "paramiko>=5.0.0",  # CVE-2026-44405
     "netaddr",