test: integration test eth6 signed (#280)

# What ❔

Resign PR #269

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Co-authored-by: Roman Petriv <[email protected]>
Co-authored-by: abilevych <[email protected]>
Co-authored-by: amelnytskyi <[email protected]>
Co-authored-by: abilevych <[email protected]>
Co-authored-by: Artem Melnytskyi <[email protected]>
Co-authored-by: Oleh Bairak <[email protected]>
Co-authored-by: Vasyl Ivanchuk <[email protected]>