fix(swc): SWC doesn't reload the application on Windows

[JohanManders]

PR Checklist

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• 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?

[x] Bugfix
[ ] 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?

The SWC compiles the file that are changed but doesn't restart the server on Windows.

Issue Number: #2187

What is the new behavior?

It does restart the server, like it supposed to do.

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

It is all described in this comment: #2187 (comment)

[kamilmysliwiec]

LGTM