Add Missing fn_unstructured_nabla_fused_tuple_of_fields to Regression & Performance Tests #1243

Job	Run time
perftests (gcc-8, release)	1m 41s
perftests (gcc-9, release)	1m 36s
perftests (gcc-10, release)	1m 42s
perftests (gcc-11, release)	1m 41s
perftests (gcc-12, debug)	2m 18s
perftests (gcc-12, release)	1m 39s
perftests (gcc-13, debug)	2m 9s
perftests (gcc-13, release)	1m 46s
perftests (clang-11, debug)	1m 49s
perftests (clang-11, release)	1m 59s
perftests (clang-12, debug)	1m 54s
perftests (clang-12, release)	1m 59s
perftests (clang-13, release)	2m 6s
perftests (clang-14, release)	2m 16s
perftests (clang-15, debug)	1m 56s
perftests (clang-15, release)	2m 0s
perftests (clang-16, debug)	2m 1s
perftests (clang-16, release)	2m 5s
perftests (clang-14-cuda-11, debug)	6m 51s
perftests (clang-14-cuda-11, release)	5m 12s
perftests (gcc-10-cuda-11.8, debug)	5m 52s
perftests (gcc-10-cuda-11.8, release)	5m 11s
perftests (gcc-11-cuda-12.0, debug)	5m 33s
perftests (gcc-11-cuda-12.0, release)	5m 6s
perftests (gcc-12-cuda-12.1, debug)	6m 5s
perftests (gcc-12-cuda-12.1, release)	5m 39s
perftests (gcc-12-cuda-12.2, debug)	6m 3s
perftests (gcc-12-cuda-12.2, release)	5m 34s
perftests (gcc-12-cuda-12.3, debug)	6m 7s
perftests (gcc-12-cuda-12.3, release)	5m 19s
perftests (base-hip, debug)	7m 12s
perftests (base-hip, release)	6m 24s
perftests (gcc-10-hpx, release)	3m 40s
perftests (nvhpc-23.3, debug)	13m 7s
perftests (nvhpc-23.3, release)	13m 17s
perftests (nvhpc-23.9, debug)	8m 47s
perftests (nvhpc-23.9, release)	10m 23s
	2h 45m 59s

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