bug: Old .env file in the Validator Deposit page

[salgozino]

What

• In the page of the Validator Deposit with Direct Interaction shows an old version of the .env file.

Why

• It was changed in v1.2

Refs

• PR: https://github.com/gnosischain/deposit-contract/releases/tag/1.2.0
• New .env.example file: https://github.com/gnosischain/deposit-contract/blob/297e76f4d635027b7a0431e757325cfb03d78160/scripts/.env.example

Context

Additional context