pythongh-155917: Narrow bare except in email._header_value_parser.get_parameter (pythongh-155916)

Author: cmw0213

Lib/email/_header_value_parser.py

@@ -2537,7 +2537,7 @@ def get_parameter(value):
         else:
             try:
                 token, rest = get_extended_attrtext(inner_value)
-            except:
+            except errors.HeaderParseError:
                 pass
             else:
                 if not rest: