Don't Allow Drop Tables in Production

## Don't allow --drop-tables in production

### Acceptance Criteria
1. install:run --drop-tables checks the environment for production and doesn't run

### Tasks
- Update the dropTables conditional in `Install\RunInstallCommand::execute()` to account for `$app['env'] === 'production'`

### Additional Notes
- None
`$app` is not defined. Well have to inject the environment into this service.