* Use groupcache pool for state db access
* Group cache config and logging stats on timer
* Integrate state validator into server
* Use tagged ipfs-ethdb
* groupcache config for tests
* Work around duplicate registration of groupcache error in tests
* Use tagged version of eth-ipfs-state-validator
* State validation command.
* Validator for static replicas to keep cache warm
* Update docker go-version and go.mod.
* Address comments and self review.
* Fix ipfs-ethdb version.
Co-authored-by: Arijit Das <arijitad.in@gmail.com>
