chore: update repo references in package.json files

[CemYil03]

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?

• Code style update (formatting, local variables)
• Other... Please describe: minor change to comply with npmjs docs

Does this PR introduce a breaking change?

• Yes
• No

Other information

https://docs.npmjs.com/cli/v9/configuring-npm/package-json#repository

The URL should be a publicly available (perhaps read-only) url that can be handed directly to a VCS program without any modification. It should not be a url to an html project page that you put in your browser. It's for computers.

If the package.json for your package is not in the root directory (for example if it is part of a monorepo) ...

[coveralls]

Pull Request Test Coverage Report for Build 448efafa-b56e-499e-8a77-2a63f6279c25

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.675%

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Totals
Change from base Build 4d97af2b-5b7e-488e-a334-ead2f9bfc8a8:	0.0%
Covered Lines:	6516
Relevant Lines:	7031

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💛 - Coveralls

[micalevisk]

now npm docs @nestjs/core should redirect us to the right path inside the repo. Thanks!

[kamilmysliwiec]

LGTM