Use pre-built perf_data_converter image

We need [perf_data_converter](https://github.com/google/perf_data_converter) as a dependency. It's not shipped in a compiled form so we currently compile it by ourselves as part of the Docker image build. This adds a significant overhead for the first run (6x, ~3 minutes) and is [unstable](https://github.com/google/perf_data_converter/issues/96).

We could ship a Docker image with compiled perf_data_converter binary by ourselves and use it in this project same as we do with Envoy binaries.