fix(developer): publish developer-utils package during build

[mcdurdin]

Fixes: #12426

@keymanapp-test-bot skip

[keymanapp-test-bot]

User Test Results

Test specification and instructions

User tests are not required

Test Artifacts

• Developer
  • Keyman Developer
  • Compiler Regression Tests
  • kmcomp.zip
• Keyboards
  • Test Keyboards

[srl295]

Glad it was easy

[keyman-server]

Changes in this pull request will be available for download in Keyman version 18.0.118-alpha

[srl295]

@mcdurdin does this need a release note? that @keymanapp/kmc@alpha is no longer broken?

[srl295]

$ docker run --rm -it node npx -y '@keymanapp/kmc@18.0.117-alpha'
…
npm error notarget No matching version found for @keymanapp/developer-utils@18.0.117-alpha.


$ docker run --rm -it node npx -y '@keymanapp/kmc@18.0.118-alpha'
Usage: kmc [options] [command]
…

[mcdurdin]

No release note needed for alpha -- it is expected to be broken. We still have the history.md with every PR