remove grunt in pipeline build

2 jobs for feature/produkthaftung in 49 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #32626
build

00:00:49

 
  Publish
skipped #32627
publish
 
Name Stage Failure
failed
build Build
  reason: 'unsupported',
code: 'ERR_OSSL_EVP_UNSUPPORTED'
}

Node.js v19.6.0
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1