CI: Unify pipeline into single main.yml with composite actions and in… #4

Job	Run time
Compiler / Lint and Check	1m 21s
Runtime / Deno Lint	7s
CLI / Lint and Check	1m 4s
CLI / Release (aarch64-apple-darwin)	3m 43s
CLI / Release (x86_64-unknown-linux-musl)	2m 40s
CLI / Release (aarch64-unknown-linux-musl)	2m 57s
CLI / Release (x86_64-apple-darwin)	2m 51s
Compiler / Test and Release	57s
Runtime / Deno Test	26s
Std / test	49s
Host / dom	33s
Std / math	1m 18s
Std / re	1m 33s
Std / json	1m 20s
Host / time	27s
Host / network	26s
Host / storage	36s
CLI / Test	1m 35s
Cloudflare Upload (CDN)	28s
Docs / Build	55s
Demo	21s
Docs / Deploy	24s
	26m 51s

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