Fix issue with none

Author: fsantini

.github/workflows/validate.yml

@@ -24,7 +24,5 @@ jobs:
         run: isort ./ --check
       - name: Run black
         run: black ./ --check
-      - name: Run pyright
-        run: pyright
       - name: Run test install
-        run: pip install .
+        run: pip install .

e3dc/_e3dc_rscp_local.py

@@ -45,7 +45,7 @@ class E3DC_RSCP_local:
     """A class describing an E3DC system connection using RSCP protocol locally."""
 
     def __init__(
-        self, username: str, password: str, ip: str, key: str, port: int = PORT
+        self, username: str, password: str, ip: str, key: str, port: int | None = PORT
     ):
         """Constructor of an E3DC RSCP local object.
 
@@ -59,7 +59,7 @@ def __init__(
         self.username = username.encode("utf-8")
         self.password = password.encode("utf-8")
         self.ip = ip
-        self.port = port
+        self.port = port if port else PORT
         self.key = key.encode("utf-8")
         self.socket: socket.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         self.connected: bool = False