Target.has_calibration errors for instructions without properties

[wshanks]

Environment

• Qiskit version: 1.1.0
• Python version: 3.12
• Operating system: Fedora Linux 40

What is happening?

If a Target has an Instruction with None for its InstructionProperties, Target.has_calibration raises an AttributeError.

How can we reproduce the issue?

Consider this case from the Target docstring with the has_calibration call added at the end:

from qiskit.circuit.library import CXGate
from qiskit.transpiler import Target, InstructionProperties

target = Target()
cx_properties = {
    (0, 1): None,
    (1, 0): None,
    (0, 2): None,
    (2, 0): None,
    (0, 3): None,
    (2, 3): None,
    (3, 0): None,
    (3, 2): None
}
target.add_instruction(CXGate(), cx_properties)

target.has_calibration("cx", (0, 1))  # AttributeError!

What should happen?

The last line above should return False

Any suggestions?

I will submit a PR.