Update babel-plugin-lodash

[pjonsson]

What this PR does

Switch to a forked babel-plugin-lodash
to fix the warning:

`isModuleDeclaration` has been deprecated, please migrate to `isImportOrExportDeclaration`
    at isModuleDeclaration (/app/node_modules/@babel/types/lib/validators/generated/index.js:2748:35)
    at PluginPass.Program (/app/node_modules/babel-plugin-lodash/lib/index.js:102:44)

Test me

This is tested by CI.

Checklist

• There are unit tests to verify my changes are correct or unit tests aren't applicable (if so, write quick reason why unit tests don't exist)
• I've updated relevant documentation in doc/.
• I've updated CHANGES.md with what I changed.
• I've provided instructions in the PR description on how to test this PR.

[na9da]

I feel, it might be better to remove the dependency from package.json and babel config. It was added earlier to reduce bundle size bloat. If that is still the case we could revisit it later.

[pjonsson]

My experience is that evaluating if old functionality can be removed tends to get stuck for weeks/months, this PR removes the warning right now. And I believe the update itself is low-risk, the "new" package is just a fork of the previous package with a couple of extra commits.

Edit: and this PR does not make it harder (or easier) to remove the old functionality if you decide to do so.