feat(rpc): Add more fields to `getmininginfo` call #1725

Job	Run time
Versioning	0s
Build CD Docker / Build images	5m 33s
Test CD testnet Docker config file / Test testnet-conf in Docker	1m 29s
Test CD default Docker config file / Test default-conf in Docker	1m 20s
Test CD custom Docker config file / Test custom-conf in Docker	31s
Deploy single ${{ inputs.network }} instance	0s
Deploy ${{ matrix.network }} nodes	0s
Open or update issues for release failures	0s
	8m 53s

Provide feedback