feat: less verbose 'missing packages' error message

[micalevisk]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Other... Please describe:

What is the current behavior?

npm i isn't supposed to be used when we're using another package manager. So this can be confusing to new nodejs devs out there.

What is the new behavior?

• no hint on which command we should run to fix the error because it's misleading
• Follows the same wording as the errors raised by @nestjs/common

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[kamilmysliwiec]

lgtm