Disable explicit broadcasting for lightning

[mlxd]

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Context: This explicitly disables the broadcasting pipeline in PennyLane for lightning.qubit and also lightning.gpu

Description of the Change: As above.

Benefits: Ensures backwards compatibility of Lightning devices with PennyLane.

Possible Drawbacks: Updates will be required to take advantage of broadcasting supports to improve the performance with parameter-shit and finite-shots workloads.

Related GitHub Issues: PennyLaneAI/pennylane#2590 PennyLaneAI/pennylane#2627 PennyLaneAI/pennylane#2749

[github-actions]

Test Report (Linux, Kokkos, and Kokkos Kernels) on Ubuntu

           1 files  ±0             1 suites  ±0   1s ⏱️ ±0s
       975 tests ±0         975 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
229 280 runs  ±0  229 280 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit f4d3f67. ± Comparison against base commit a95cf34.

[codecov]

Codecov Report

Merging #317 (f4d3f67) into master (a95cf34) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #317   +/-   ##
=======================================
  Coverage   99.79%   99.79%           
=======================================
  Files          38       38           
  Lines        3920     3920           
=======================================
  Hits         3912     3912           
  Misses          8        8           

Impacted Files	Coverage Δ
pennylane_lightning/lightning_qubit.py	99.61% <ø> (ø)
pennylane_lightning/_version.py	100.00% <100.00%> (ø)

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[maliasadi]

Thanks @mlxd! Happy to approve.

[antalszava]

Looks good 👍