Lightning Kokkos arg test fix for MacOS

[josephleekl]

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---

Context:

Description of the Change:

Benefits:

Possible Drawbacks:

Related GitHub Issues:

[sc-77516]

[multiphaseCFD]

LGTM! Thanks @josephleekl

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.53%. Comparing base (06043d8) to head (24d2207).
Report is 1 commits behind head on v0.39.0_rc.

❗ There is a different number of reports uploaded between BASE (06043d8) and HEAD (24d2207). Click for more details.

HEAD has 7 uploads less than BASE

Flag	BASE (06043d8)	HEAD (24d2207)
	11	4

Additional details and impacted files

@@               Coverage Diff               @@
##           v0.39.0_rc     #974       +/-   ##
===============================================
- Coverage       97.03%   28.53%   -68.51%     
===============================================
  Files             255       28      -227     
  Lines           38096     2513    -35583     
===============================================
- Hits            36967      717    -36250     
- Misses           1129     1796      +667     

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