CI: Allow use of `node16` for release jobs #7200

Job	Run time
benchcomp-tests	4m 0s
documentation	1m 57s
perf	31m 32s
regression (macos-13)	34m 26s
regression (ubuntu-20.04)	22m 14s
write-json-symtab-regression	13m 59s
regression (ubuntu-22.04)	24m 10s
regression (macos-14)	19m 18s
	2h 31m 36s

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