v4 tests: useEthersUpdater

[ShravanSunder]

Use Hook test strategy mentioned in: https://github.com/scaffold-eth/eth-hooks/issues/118#issue-1092134285

Also create tests for checkUpdateOptions as the hook depends on this.

Test cases:

• test if update function is called
• test if all parameters work
• test if errors are thrown if invalid updateOptions
• test if block interval and polling are mutually exclusive