Pass track_resources attribute through to Catalyst runtime (#7372)

**Context:** PR #7226 added a resource-tracking feature to PennyLane.
The same feature is desired in Catalyst:
PennyLaneAI/catalyst#1619

**Description of the Change:** Adds a class attribute to `null.qubit`
which allows the `resource_tracking` argument to get passed through to
Catalyst.

**Benefits:** `track_resources` can more cleanly be passed through to
Catalyst.

**Possible Drawbacks:**

**Related GitHub Issues:**
#7226
PennyLaneAI/catalyst#1619
PennyLaneAI/pennylane-benchmarks#76
[sc-88213](https://app.shortcut.com/xanaduai/story/88213)

---------

Co-authored-by: Ali Asadi <[email protected]>

Author: 2 people

doc/releases/changelog-dev.md

@@ -232,6 +232,7 @@ Here's a list of deprecations made this release. For a more detailed breakdown o
 
 * `null.qubit` can now support an optional `track_resources` argument which allows it to record which gates are executed.
   [(#7226)](https://github.com/PennyLaneAI/pennylane/pull/7226)
+  [(#7372)](https://github.com/PennyLaneAI/pennylane/pull/7372)
 
 * A new internal module, `qml.concurrency`, is added to support internal use of multiprocess and multithreaded execution of workloads. This also migrates the use of `concurrent.futures` in `default.qubit` to this new design.
   [(#7303)](https://github.com/PennyLaneAI/pennylane/pull/7303)

pennylane/devices/null_qubit.py

@@ -277,6 +277,9 @@ def __init__(self, wires=None, shots=None, track_resources=False) -> None:
         self._debugger = None
         self._track_resources = track_resources
 
+        # this is required by Catalyst to toggle the tracker at runtime
+        self.device_kwargs = {"track_resources": track_resources}
+
     def _simulate(self, circuit, interface):
         num_device_wires = len(self.wires) if self.wires else len(circuit.wires)
         results = []