D3-sankey-circular 0.32.0 breaks webpack builds due to mjs imports

[RussGlover]

The previous release of d3-sankey-circular (0.32.0) breaks webpack builds when it tries to import named exports from non EcmaScript module #tomshanley/d3-sankey-circular#32 .

This was resolved in #tomshanley/d3-sankey-circular#33 and has been released under version 0.33.0 tomshanley/d3-sankey-circular@dbb238a

Resolving d3-sankey-circular to 0.33.0 fixes the issue for me.