fix(get_config): use port 22 for SSH fallback — self.port is the REST API port

In API transport mode, self.port = 443 (HTTPS). All SSH attempts were
connecting to port 443 which speaks TLS, not SSH — hence 'banner exchange
timed out'. Fix: hardcode port 22 for the SSH config fallback.

napalm_procurve/procurve.py

@@ -616,7 +616,7 @@ class ProcurveDriver(ConfigLifecycleMixin, SwitchDriver):
             "-o", "BatchMode=no",
             "-o", "KexAlgorithms=+diffie-hellman-group1-sha1,diffie-hellman-group14-sha1",
             "-o", "HostKeyAlgorithms=+ssh-rsa",
-            "-p", str(self.port or 22),
+            "-p", "22",  # always SSH port — self.port is the REST API port (443)
             f"{self.username}@{self.hostname}",
             "show running-config",
         ]