Add insecure-dep test task to Makefile and CI

[uvizhe]

Issue Addressed

#8106

Proposed Changes

I added insecure-deps target to Makefile and a new step into check-code section of test-suite CI workflow that uses the former.

That bash multiliner is not ideal, I'd prefer a cargo plugin instead but none exists.

I also changed Cargo.toml to test that the new CI check works. Once we see a pipeline fails, I revert the change.

[uvizhe]

Oops, I did not notice there's already another PR on the same issue. Feel free to close this