github actions fails website postinstall task when hs2js is a workspace dependency

[felixroos]

follow up for #870 see #870 (comment)

when settings hs2js to "workspace:*", or when removing it and copying the wasm files from ../packages/tidal/node_modules/hs2js/dist/ .

in both cases, hs2js is a symlink, which probably somehow doesn't work in github actions.
It works when using an older version of hs2js, forcing pnpm to not create a symlink.
It should be noted that the dependency set in website is only for the tree-sitter wasm files.
The actual hs2js logic will be up to date, so the dep only needs to be updated when hsj2s rebuilds the wasm files with a newer version of tree-sitter / tree-sitter-haskell.