fix(core): when having multiple versions on middleware routes builder

[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?

Issue Number: closes #13093

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

[coveralls]

Pull Request Test Coverage Report for Build bafc0113-b8cc-4fce-b433-ecb4a31fbd5c

• -3 of 27 (88.89%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.03%) to 92.172%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/core/middleware/route-info-path-extractor.ts	19	22	86.36%

Totals
Change from base Build 97ad4a6d-b0b5-42af-9166-b023f826fa18:	-0.03%
Covered Lines:	6735
Relevant Lines:	7307

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💛 - Coveralls

[kamilmysliwiec]

Great PR ❤️

Thank you