refactor(common): update log level

[Tony133]

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?

Issue Number: #10878

What is the new behavior?

• Updated the log level value

Does this PR introduce a breaking change?

• Yes
• No

Other information

Note: PR for the next major version of NestJS 😻 (Not merge at the moment)

[Tony133]

In the old PR I had also moved the ConsoleLoggerOptions interface to a separate file, here I did not move it if you want I can move it otherwise it stays as it is now, for no problem. 👍

However I will check the files that are missing to add @ApiPublic so contributors like me have no problem figuring out which are public or private

[coveralls]

Pull Request Test Coverage Report for Build e36ebc3b-d34a-4399-8e04-84419c5085b4

• 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 92.957%

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Totals
Change from base Build 4a75247a-671a-472c-a4bc-e84b7f7d9902:	0.0%
Covered Lines:	6414
Relevant Lines:	6900

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💛 - Coveralls

[micalevisk]

since this introduces breaking changes (as per Kamil's comment), can you update that checkbox on PR's description? ~ just to clarify for future readers

I'll label this accordingly.

[Tony133]

Can we add it in this branch https://github.com/nestjs/nest/tree/10.0.0 ?

[kamilmysliwiec]

LGTM