Add `$macc_v2` #1501

Job	Run time
pre_job	4s
pre_docs_job	7s
Try build docs (html)	3m 3s
Try build docs (latexpdf)	2m 10s
Reusable build (ubuntu-latest)	15m 32s
Reusable build (macos-latest)	10m 48s
Run docs tests (ubuntu-latest)	1m 9s
Run tests (ubuntu-latest)	33s
Run tests (macos-latest)	1m 19s
	34m 45s

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