docs: update database name in .env.example from evolution to evolution_db

Author: guilherme

.env.example

@@ -29,8 +29,8 @@ DEL_INSTANCE=false
 
 # Provider: postgresql | mysql
 DATABASE_PROVIDER=postgresql
-DATABASE_CONNECTION_URI='postgresql://user:pass@postgres:6543/evolution?pgbouncer=true&schema=evolution_api'
-DATABASE_DIRECT_CONNECTION_URI=postgresql://user:pass@postgres:5432/evolution?schema=evolution_api
+DATABASE_CONNECTION_URI='postgresql://user:pass@postgres:6543/evolution_db?pgbouncer=true&schema=evolution_api'
+DATABASE_DIRECT_CONNECTION_URI=postgresql://user:pass@postgres:5432/evolution_db?schema=evolution_api
 # Client name for the database connection
 # It is used to separate an API installation from another that uses the same database.
 DATABASE_CONNECTION_CLIENT_NAME=evolution_exchange