docs: merge postgrest-docs into the core repository #2609

Job	Run time
Build MacOS (Nix)	11m 22s
Build aarch64 (Cabal, GHC 9.4.8)	0s
Build Linux (Cabal, GHC 9.4.8)	1m 57s
Build Linux (Cabal, GHC 9.6.4)	40s
Build Linux (Stack)	3m 0s
Build Linux (Cabal, GHC 9.8.1)	36s
Build Linux static (Nix)	55s
Build MacOS (Stack)	2m 40s
Build Windows (Stack)	5m 46s
Get FreeBSD build from CirrusCI	7m 14s
Lint & check code style	1m 27s
Loadtest (Nix)	7m 27s
Test memory (Nix)	1m 49s
Test (Nix)	6m 33s
Test PG 9.6 (Nix)	4m 33s
Test PG 10 (Nix)	4m 50s
Test PG 11 (Nix)	5m 18s
Test PG 12 (Nix)	4m 49s
Test PG 13 (Nix)	4m 39s
Test PG 14 (Nix)	5m 8s
Test PG 15 (Nix)	4m 41s
Test PG 16 (Nix)	5m 4s
Prepare release	0s
Release on GitHub	0s
Release on Docker Hub	0s
Release Arm Builds on Docker Hub	0s
Remove copied files from server	0s
	1h 30m 28s

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