[Validator] Add en and ru translations for empty file message
minor #11196 [Validator] Add translation for empty file message (megazoll)

This PR was merged into the 2.6-dev branch.

Discussion
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[Validator] Add translation for empty file message

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
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8308cfa [Validator] Add en and ru translations for empty file message