Use node24 by default #422

Job	Run time
test-cljfmt (ubuntu-latest)	11s
test-cljstyle (ubuntu-latest)	13s
test-clojure-cli (ubuntu-latest)	14s
all-together	16s
test-zprint (ubuntu-latest)	12s
test-bb (ubuntu-latest)	11s
test-tools-deps (ubuntu-latest)	18s
test-clj-kondo (ubuntu-latest)	10s
test-boot (ubuntu-latest)	16s
test-clojure-cli-latest (ubuntu-latest)	12s
test-leiningen (ubuntu-latest)	13s
	2m 26s

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