style: fix formatting

[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
• 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 run format touches several files

What is the new behavior?

npm run format & npm run lint:fix has nothing to fix anymore.

Does this PR introduce a breaking change?

• Yes
• No

[coveralls]

Pull Request Test Coverage Report for Build bc0e971a-e1b9-4f93-9099-05013638d139

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.816%

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Totals
Change from base Build 524b0569-b11d-460d-a48f-9dcb01ffde7f:	0.0%
Covered Lines:	6099
Relevant Lines:	6501

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💛 - Coveralls

[kamilmysliwiec]

lgtm