Update EIP-7702: Add security consideration about use of storage

[frangio]

trafficstars

Also applies a minor suggestion posted in https://github.com/ethereum/EIPs/pull/8969 after it was merged.

[eth-bot]

File EIPS/eip-7702.md

Requires 1 more reviewers from @adietrichs, @lightclient, @samwilsn, @vbuterin

[github-actions[bot]]

The commit 95421031b0043b6ffe7d09c7aaa8301fa99a4e0c (as a parent of fa2d00ff4ced8ac9abaf6620031132b4a58b4ab1) contains errors. Please inspect the Run Summary for details.

[frangio]

This is unfortunately tripping into linting/CI errors from the EIP to ERC migration.