#1863 Update codex image to 0.166.0

/kind feature

What type of PR is this?

/kind feature

What this PR does / why we need it:

Updates the codex image from 0.165.0 to 0.166.0.

Which issue(s) this PR is related to:

N/A

Special notes for your reviewer:

Changelog: https://github.com/openai/codex/releases/tag/rust-v0.166.0

Does this PR introduce a user-facing change?

Update codex image from 0.165.0 to 0.166.0

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Summary by cubic

Updates the codex image from 0.165.0 to 0.166.0 in the codex/Dockerfile.