add check protovalidate env method

[TremblingV5]

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Checklist

• Link to an issue if it really related.
• At least describe what this PR does.
• Use rebase to confirm that current branch doesn't conflict with main branch.
• Unit tests. At least do not reduce the unit test coverage.
• Checked and updated guidelines.md which used to describe how to build, deploy and use DouTok.

[codecov]

Codecov Report

Attention: Patch coverage is 18.75000% with 13 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...gopkgs/middlewares/protobufvalidator/middleware.go	18.75%	11 Missing and 2 partials ⚠️

Files with missing lines	Coverage Δ
...gopkgs/middlewares/protobufvalidator/middleware.go	11.53% <18.75%> (ø)