`_7702Target = address(0)` will result in `OptimismPortal2.depositTransaction` fuzzing test failure

**Bug Description**

In the `testFuzz_depositTransaction_eoa7702_succeeds` fuzzing test in `OptimismPortal2.t.sol`, if the `_7702Target` param happens to be `address(0)`, it will result in etching empty bytes to `depositor`'s code and leads to `depositor`'s address being aliased and test failure.
- etching `depositor` in test: https://github.com/ethereum-optimism/optimism/blob/a1e78ba69da239270bf26da656fbdb6a5f9d2578/packages/contracts-bedrock/test/L1/OptimismPortal2.t.sol#L2668
- `OptimismPortal2.depositTransaction` checking if `msg.sender` is an EOA (and alias if it is): https://github.com/ethereum-optimism/optimism/blob/a1e78ba69da239270bf26da656fbdb6a5f9d2578/packages/contracts-bedrock/src/L1/OptimismPortal2.sol#L606-L609
- test will fail because the `from` in `TransactionDeposited ` event does not match: https://github.com/ethereum-optimism/optimism/blob/a1e78ba69da239270bf26da656fbdb6a5f9d2578/packages/contracts-bedrock/test/L1/OptimismPortal2.t.sol#L2656-L2665

**Steps to Reproduce**

Etch the `depositor`'s code with `address(0)` and test

**Expected behavior**

Test will fail due to log mismatch (the `from` in `TransactionDeposited ` event)

**Environment Information:**

**Configurations:**

**Logs:**

**Additional context**

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