FIX: Small change to port naming when no names are provided to align with Circuit behaviour (#6816)

Author: maxcapodi78

doc/changelog.d/6816.fixed.md

@@ -0,0 +1 @@
+Small change to port naming when no names are provided to align with Circuit behaviour

src/ansys/aedt/core/visualization/advanced/touchstone_parser.py

@@ -119,7 +119,7 @@ def __init__(self, solution_data=None, touchstone_file=None):
                         if line.lower().startswith("! port"):
                             pnames.append(line.split("=")[-1].strip())
                     if not pnames:
-                        pnames = [f"Port{i + 1}" for i in range(self.nports)]
+                        pnames = [f"{i + 1}" for i in range(self.nports)]
                 self.port_names = pnames
         self.log_x = True