fix: pgvector installation issue #38

Job	Run time
regression (rocky8, precheck-main, on)	23m 29s
regression (rocky8, precheck-main, off)	22m 13s
regression (rocky8, plcheck, on)	14m 48s
regression (rocky8, plcheck, off)	13m 47s
regression (rocky9, precheck-main, on)	22m 32s
regression (rocky9, precheck-main, off)	21m 20s
regression (rocky9, plcheck, on)	13m 13s
regression (rocky9, plcheck, off)	13m 25s
regression (ubuntu22.04, precheck-main, on)	23m 19s
regression (ubuntu22.04, precheck-main, off)	21m 56s
regression (ubuntu22.04, plcheck, on)	11m 40s
regression (ubuntu22.04, plcheck, off)	12m 54s
	3h 34m 36s

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