cabal: The run command is for running a single executable at once.

**Run method**
PGPASSFILE=config/pgpass-mainnet cabal run cardano-db-sync -- \
--config config/mainnet-config.yaml \
--socket-path ../cardano-node/state-node-mainnet/node.socket \
--state-dir ledger-state/mainnet \
--schema-dir schema/

**Problem Report**
Warning: Requested index-state 2023-07-27T01:34:31Z is newer than
'hackage.haskell.org'! Falling back to older state (2023-07-26T23:47:54Z).
Resolving dependencies...

cabal: The run command is for running a single executable at once. The target
'cardano-db-sync' refers to the package cardano-db-sync-13.1.1.2 which
includes the executable 'test-http-get-json-metadata', the executable
'http-get-json-metadata' and the executable 'cardano-db-sync'.