tree-sitter: 1.18.2 -> 0.19.3

Update the grammars and add `allGrammars` derivation.
`nix-build "<nixpkgs>" -A tree-sitter.allGrammars` will create a
derivation with symlinks to all the grammars

pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-haskell.json

@@ -1,9 +1,9 @@
 {
   "url": "https://github.com/tree-sitter/tree-sitter-haskell",
-  "rev": "2a0aa1cb5f1b787a4056a29fa0791e87846e33fb",
-  "date": "2018-11-03T09:56:20-07:00",
-  "path": "/nix/store/9xszs4xi51qr72laxr67zxnh8y2br0gy-tree-sitter-haskell",
-  "sha256": "0z0nfip5m0yrjgm49j5nld7jkgyjdmps101xhbng39pwfnh1av83",
+  "rev": "24cf84ff618e96528882c67c8740fadcd6c4a921",
+  "date": "2021-03-06T17:58:27+01:00",
+  "path": "/nix/store/46hpbz06d1p5n0rp6z3iwy2lpwrn8kgl-tree-sitter-haskell",
+  "sha256": "1l004x1z9g1p8313ipvrf581vr2wi82qcwc0281kg083m2z4535p",
   "fetchSubmodules": false,
   "deepClone": false,
   "leaveDotGit": false