Fix remove validator Talos action

[naddison36]

Summary

Fixes Talos actions that referenced Hardhat-provided global ethers and hre objects, which are unavailable in the standalone Talos runtime.

• Use the action signer’s provider to resolve the chain ID in removeValidator.
• Remove the unused hre.network argument from the SSV cluster lookup.
• Use the signer’s provider when checking strategy ETH balances for automatic validator deposits and withdrawals.

Testing

• Ran Prettier on the changed JavaScript files.
• Ran focused ESLint checks.
• Ran git diff --check.
• Verified all registered Talos action modules load successfully.

[sparrowDom]

LGTM