Update haskell queries for tree-sitter-haskell v0.21.0 rewrite

[mrcjkb]

See:

• fix(haskell): update queries and tests for rewritten parser nvim-treesitter/nvim-treesitter#6580
• Rewrite the grammar once again tree-sitter/tree-sitter-haskell#120

[mrcjkb]

Am I correct in assuming this fixes #348? Many thanks, Vim+Haskell tooling god.

Yes, the old queries are now outdated and will cause errors to be thrown.

[andymass]

Thank you!