CompatHelper: bump compat for DimensionalData to 0.30, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the DimensionalData package from 0.27, 0.28, 0.29 to 0.27, 0.28, 0.29, 0.30.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[sethaxen]

There several deprecations in DimensionalData reaching back to <v0.27 (our lower bound) that didn't depwarn and that were removed in v0.30:

• LookupArrays renamed to Lookups
• LookupArrays.index deprecated (now should use lookup followed by parent)

The above are now fixed.

Additionally, the syntax set(x; dim_name=new_lookup) was removed in v0.30, but the syntax set(x, dim_name => new_lookup) is present in all supported versions, so we now use this in tests.

v0.30 adds a new type argument for the dims to AbstractDimStack, which requires we change the type of Dataset accordingly. To support both old and new versions, this is done with a @static version check. Since the type arguments aren't part of our Dataset API, we won't treat this as breaking.

[sethaxen]

All remaining test failures should be due to JuliaIO/DiskArrays.jl#289 and are unrelated to these changes