CI: Ruby 2.5 runs on macos-13 (amd64) #278

Job	Run time
ruby-versions / Generate Ruby versions	1s
build (2.5, 0.1.7, /tmp/local)	1m 9s
build (2.5, 0.1.7)	26s
build (2.5, 0.2.5, /tmp/local)	45s
build (2.5, 0.2.5)	27s
build (2.6, 0.1.7, /tmp/local)	1m 2s
build (2.6, 0.1.7)	31s
build (2.6, 0.2.5, /tmp/local)	52s
build (2.6, 0.2.5)	32s
build (2.7, 0.1.7, /tmp/local)	1m 19s
build (2.7, 0.1.7)	47s
build (2.7, 0.2.5, /tmp/local)	50s
build (2.7, 0.2.5)	38s
build (3.0, 0.1.7, /tmp/local)	25s
build (3.0, 0.1.7)	32s
build (3.0, 0.2.5, /tmp/local)	25s
build (3.0, 0.2.5)	19s
build (3.1, 0.1.7, /tmp/local)	22s
build (3.1, 0.1.7)	22s
build (3.1, 0.2.5, /tmp/local)	36s
build (3.1, 0.2.5)	21s
build (3.2, 0.1.7, /tmp/local)	28s
build (3.2, 0.1.7)	20s
build (3.2, 0.2.5, /tmp/local)	31s
build (3.2, 0.2.5)	28s
build (3.3, 0.1.7, /tmp/local)	27s
build (3.3, 0.1.7)	15s
build (3.3, 0.2.5, /tmp/local)	45s
build (3.3, 0.2.5)	36s
build (head, 0.1.7, /tmp/local)	22s
build (head, 0.1.7)	18s
build (head, 0.2.5, /tmp/local)	28s
build (head, 0.2.5)	27s
	18m 6s

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