Add tests for tor-print-ed-signing-cert and other tools, and run them in CI
We almost missed a memory safety bug in #31012 (moved), because our CI doesn't run our tools. We should write some quick tool tests, and run them in our CI.
We almost missed a memory safety bug in #31012 (moved), because our CI doesn't run our tools. We should write some quick tool tests, and run them in our CI.