chore: fix npm release preparation scripts, add .npmrc and release script

[pichlermarc]

Which problem is this PR solving?

Release preparations scripts are currently broken. #4265
This PR

• fixes the scripts by making them remove packages npm workspaces instead before bumping the versions.
• add the release script that maintainers run to publish new versions
• adds an .npmrc file that
  • pins package.json to v2 to ensure backwards compatibility with older versions of npm (see also [renovate] enable lock file maintainance or increase its frequency if it's already on #4263)
  • add auth-token env var to .npmrc so that the publish script can be used when a token is present

Fixes #4265

Type of change

• internal

How Has This Been Tested?

• Manual testing

[codecov]

Codecov Report

Merging #4275 (f8b580b) into main (5ed54c8) will decrease coverage by 0.01%.
The diff coverage is n/a.

❗ Current head f8b580b differs from pull request most recent head 1b8281a. Consider uploading reports for the commit 1b8281a to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4275      +/-   ##
==========================================
- Coverage   92.31%   92.31%   -0.01%     
==========================================
  Files         330      330              
  Lines        9424     9421       -3     
  Branches     1998     1996       -2     
==========================================
- Hits         8700     8697       -3     
  Misses        724      724              

see 2 files with indirect coverage changes