* Add prometheus metrics endpoint in watcher
* Add event, sync status and DB size metrics
* Fix subgraph watchers DB entities directory path
* Make watcher metrics optional using config
* Update codegen with index-block CLI and remove graph-node
* Add filter logs by contract flag
* Skip generating GQL API for immutable variables
* Add config for maxEventsBlockRange
* Add new flags in existing watchers
* Update demo for IPLD blocks
* Add update for custom properties in state diff
* Implement custom update of transfer counter in state diff
* Comment code for updating custom state prop
* Separate markdown for erc721-watcher Demo
* Run workflow on main branch commit