Typings & metadata for local adaptors seems to have broken

When passing LOCAL_ADAPTORS=true, I expect to be able to run lightning with adaptors from my local adaptors repo.

I don't seem to be able to get types of metadata (still investigating)

I see this error in Lightning:

[error] Task #PID<0.1546.0> started from #PID<0.1545.0> terminating
** (Version.InvalidRequirementError) invalid requirement: "== local"
    (elixir 1.18.3) lib/version.ex:453: Version.parse_requirement!/1
    (lightning 2.14.6-pre1) lib/lightning/adaptor_service.ex:240: Lightning.AdaptorService.find_adaptor/2
    (lightning 2.14.6-pre1) lib/lightning/adaptor_service.ex:293: Lightning.AdaptorService.install/2
    (lightning 2.14.6-pre1) lib/lightning/metadata_service.ex:99: Lightning.MetadataService.get_adaptor_path/1
    (lightning 2.14.6-pre1) lib/lightning/metadata_service.ex:57: Lightning.MetadataService.do_fetch/2
    (lightning 2.14.6-pre1) lib/lightning_web/telemetry.ex:143: anonymous fn/2 in LightningWeb.Telemetry.with_span/3
    (telemetry 1.3.0) /home/joe/repo/openfn/lightning/deps/telemetry/src/telemetry.erl:324: :telemetry.span/3
    (elixir 1.18.3) lib/task/supervised.ex:101: Task.Supervised.invoke_mfa/2
    (elixir 1.18.3) lib/task/supervised.ex:36: Task.Supervised.reply/4
Function: #Function<0.42153183/0 in Lightning.MetadataService.fetch/2>

In the browser window I get:

useDocs.tsx:28 NotFound: Got 404 from Unpkg for: @openfn/language-dhis2@local/package.json
    at fetchFile (index.js:446:13)

The @local version used to work properly but seems to have died somewhere down the line.

Broken in v2.14.3 too (I'll try some random versions and see if any work)

Reproduce with LOCAL_ADAPTORS=true and inspect Lightning.AdaptorService.find_adaptor/2 and install/2 in lib/lightning/adaptor_service.ex, then follow the calls from lib/lightning/metadata_service.ex. Check useDocs.tsx for the browser-side metadata request. Done means local adaptor metadata and types resolve without the invalid requirement or Unpkg 404.