slither is currently erroring in CI with a strange error.
This bumps `slither` to the latest release in an attempt to
fix that issue.

The issue is described here: https://github.com/ethereum-optimism/optimism/pull/10410

The release can be found here: https://github.com/crytic/slither/releases

This needs a release of `ci-builder` followed up to get the new version
of slither running in CI.