Fix a docstring rst link rendering within an inline literal (#13567)

(cherry picked from commit 40aa70c)

qiskit/transpiler/target.py

@@ -725,7 +725,7 @@ def operation_names(self):
 
     @property
     def instructions(self):
-        """Get the list of tuples ``(:class:`~qiskit.circuit.Instruction`, (qargs))``
+        """Get the list of tuples (:class:`~qiskit.circuit.Instruction`, (qargs))
         for the target
 
         For globally defined variable width operations the tuple will be of the form