Add check-runtime and compare runtime from PAPI

There are two tools from PAPI team which we should include in our workflows
https://github.com/polkadot-api/check-runtime the other one will be diff tool to show board for UI integrators with the diff (Ping PAPI team next week)

Start with the linked PAPI check-runtime repository and inspect this repository’s workflows to determine how the tool should be included. Confirm the second PAPI diff tool and its UI-integrator output requirements with the PAPI team; done means both tools are integrated and runtime comparison or diff results are available in the workflows.

Written by the indexing model from the issue text.