Update npm version in CI to publish packages in workflows

[boeckMt]

Describe the bug

The Issue ...You need to authorize this machine using 'npm adduser' which was caused in the github workflow on npm publish should be resolved now.
Try to update the temporary fix from #90 (comment) with a current npm version > v8.5.1.

ukis-frontend-libraries/.github/workflows/package-main-release.yml

Line 187 in 99d2f8e

- run: npm i -g npm@6.14.13

ukis-frontend-libraries/.github/workflows/package-pre-release.yml

Line 69 in 99d2f8e

- run: npm i -g npm@6.14.13

• Node Releases
• Angular Node compatiblity

[boeckMt]

See issue npm/cli#3573

now using node 16 and npm >8.19

...
 - uses: actions/setup-node@v3
        with:
          node-version: 16
          registry-url: https://npm.pkg.github.com/
          scope: "@dlr-eoc"
      - run: npm ci
      - run: npm i -g npm@8.19.2
      - run: |
          ...
              npm publish "$dir" --access public
          ...

[boeckMt]

works in https://github.com/dlr-eoc/ukis-frontend-libraries/actions/runs/3242374122/jobs/5315765162