feat(common): add error messages for file validators

[mag123c]

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?

• 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?

Currently, the file validation system (e.g., MaxFileSizeValidator and FileTypeValidator) provides error messages that are not context-aware.

Specifically:

MaxFileSizeValidator uses a default error message that does not include the current file size if available.
FileTypeValidator uses a default error message without referencing the current file's MIME type.
This limits the usefulness of the error messages for developers, as they lack specific context regarding what caused the validation failure.

Issue Number: #14070

What is the new behavior?

This PR enhances the error message generation for file validators:

example code:

@Post('upload-image')
@UseInterceptors(FileInterceptor('file'))
uploadFile(
  @UploadedFile(
    new ParseFilePipe({
      validators: [
        new MaxFileSizeValidator({ maxSize: 1024 }),
        new FileTypeValidator({ fileType: '.(png|jpeg|jpg)' }),
      ],
    }),
  )
  file: Express.Multer.File,
) {
  console.log(file);
}

MaxFileSizeValidator:
Error messages now dynamically include the current file size if provided, improving the clarity of validation failures.
Example:

FileTypeValidator:
Error messages now include the current file's MIME type, allowing developers to understand which type was detected during validation.
Example:

Does this PR introduce a breaking change?

• Yes
• No

[coveralls]

Pull Request Test Coverage Report for Build 1e41e624-18ea-4ab6-9e2e-37016498fb6d

Details

• 4 of 4 (100.0%) changed or added relevant lines in 2 files are covered.
• 37 unchanged lines in 4 files lost coverage.
• Overall coverage increased (+0.05%) to 91.993%

---

Files with Coverage Reduction	New Missed Lines	%
packages/core/router/router-explorer.ts	1	83.2%
packages/common/pipes/validation.pipe.ts	5	95.28%
packages/microservices/listeners-controller.ts	5	80.41%
packages/core/injector/module.ts	26	84.12%

Totals
Change from base Build 2b363121-90cb-4f40-a4d9-a72aefb3e9d9:	0.05%
Covered Lines:	6813
Relevant Lines:	7406

---

💛 - Coveralls

[kamilmysliwiec]

Could you rebase to 11.0.0 branch? 🙏

[mag123c]

Of course! I'll do

[kamilmysliwiec]

LGTM