fix: correct import statement of we3 TxParams [APE-764]

[antazoey]

What I did

fix import, helps upgrade to 6.0 but can merge whenever we should have importing this way all along, so not really a breaking change

How I did it

How to verify it

Checklist

• [ ] Passes all linting checks (pre-commit and CI jobs)
• [ ] New test cases have been added and are passing
• [ ] Documentation has been updated
• [ ] PR title follows Conventional Commit standard (will be automatically included in the changelog)