[feature] allow teku to sync with http-sync method

[rolfyone]

Lighthouse has a tool to force sync blocks via HTTP. On that same branch I linked above you can compile lcli and then run: lcli http-sync --network holesky --start-block head --source-url "http://localhost:5052" --target-url "http://localhost:7052"

its a standard set of calls but we have checks,and potentially other limiting issues got hit also.