Missing case for `punctuation.section.parameter.end.julia`

[Jollywatt]

Each closing } should be scoped as punctuation.section.parameter.end.julia.
However, after where clauses, the closing } is scoped as

source.julia
meta.function.julia
meta.where-clause.julia
meta.parametric-type.julia

Notice the unbalanced colours.

[Jollywatt]

See PR #130