fix: omnibus test toml for testing fake block injector

[golddydev]

Description

Fixes omnibus.test.toml in test-blocks folder which is testing fake-block-injector.

Related Issue(s)

None

How was this tested?

Manually run this to test

cargo run --release -- --config test-blocks/omnibus.test.toml

Checklist

• My code builds and passes local tests
• I added/updated tests for my changes, where applicable
• I updated documentation (if applicable)
• branch has ≤ 5 commits (honor system)
• commit messages tell a coherent story
• branch is up to date with main (rebased on main; fast-forward possible)
• CI/CD passes on the merged-with-main result

Impact / Side effects

None

Reviewer notes / Areas to focus

omnibus.test.toml