add force_ssl configuration to pipeline

[cweibel]

Changes proposed in this pull request:

• Should expose rds.force_ssl to be configured for each environment from the pipeline, leaving it as the default value for now so it can be overridden as part of an upgrade.
• The rest of the whitespace changes are a result of running terraform fmt
• Part of Postgres upgrade 16.8 - aws_broker in development, staging and production https://github.com/cloud-gov/private/issues/2393

Things to check

• For any logging statements, is there any chance that they could be logging sensitive data?
• Are log statements using a logging library with a logging level set? Setting a logging level means that log statements "below" that level will not be written to the output. For example, if the logging level is set to INFO and debugging statements are written with log.debug or similar, then they won't be written to the otput, which can prevent unintentional leaks of sensitive data.

Security considerations

This should result in a no-op deployment