MNT: make happi.cli.search_parser always return a list #250

Job	Run time
standard / pre-commit checks / pre-commit	13s
standard / Documentation / Python 3.9: documentation building	1m 20s
standard / Conda (3.12, true) / Python 3.12: conda	3m 33s
standard / Conda (3.11, true) / Python 3.11: conda	3m 27s
standard / Conda (3.10) / Python 3.10: conda	3m 35s
standard / Conda (3.9, true) / Python 3.9: conda	3m 39s
standard / Pip (3.11, true) / Python 3.11: pip	1m 28s
standard / Pip (3.10) / Python 3.10: pip	1m 23s
standard / Pip (3.12, true) / Python 3.12: pip	1m 25s
standard / Pip (3.9, true) / Python 3.9: pip	1m 16s
standard / Documentation / Documentation deployment	0s
	21m 19s

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