CI: Unify pipeline into single main.yml with composite actions and include config for production and testing. #3

Job	Run time
Compiler / Lint and Check	24s
CLI / Lint and Check	1m 5s
Runtime / Deno Lint	6s
Compiler / Test and Release	1m 13s
CLI / Release (aarch64-apple-darwin)	3m 6s
CLI / Release (x86_64-unknown-linux-musl)	2m 40s
CLI / Release (aarch64-unknown-linux-musl)	3m 4s
CLI / Release (x86_64-apple-darwin)	2m 23s
Runtime / Deno Test	24s
Host / network	29s
Host / storage	33s
Std / re	1m 16s
Host / dom	24s
Std / json	1m 12s
Std / math	1m 19s
Host / time	23s
Std / test	49s
CLI / Test	1m 52s
Docs / Build	1m 0s
Cloudflare Upload (CDN)	0s
Demo	0s
Docs / Deploy	0s
	23m 42s

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