tools: ynl: remove unnecessary semicolons

These semicolons are not required according to Ruff. Simply remove them.

This is linked to Ruff error E703 [1]:

A trailing semicolon is unnecessary and should be removed.

Link: https://docs.astral.sh/ruff/rules/useless-semicolon/ [1]
Signed-off-by: Matthieu Baerts (NGI0) <[e-mail]>
Reviewed-by: Donald Hunter <[e-mail]>
Reviewed-by: Asbjørn Sloth Tønnesen <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

tools/net/ynl/pyynl/lib/nlspec.py

···
         return SpecStruct(self, elem)
 
     def new_sub_message(self, elem):
-        return SpecSubMessage(self, elem);
+        return SpecSubMessage(self, elem)
 
     def new_operation(self, elem, req_val, rsp_val):
         return SpecOperation(self, elem, req_val, rsp_val)

tools/net/ynl/pyynl/lib/ynl.py

···
         decoded = {}
         offset = 0
         if msg_format.fixed_header:
-            decoded.update(self._decode_struct(attr.raw, msg_format.fixed_header));
+            decoded.update(self._decode_struct(attr.raw, msg_format.fixed_header))
             offset = self._struct_size(msg_format.fixed_header)
         if msg_format.attr_set:
             if msg_format.attr_set in self.attr_sets: