feat(config): add connectionString option to PostgresConnectionNode type

[loadnull]

Proposed changes

Add the connectionString option to the Postgres connection config.

See: https://node-postgres.com/features/connecting#connection-uri

Types of changes

What types of changes does your code introduce?

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have read the CONTRIBUTING doc
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works.
• I have added necessary documentation (if appropriate)

Further comments

Using the connection.connectionString option instead of just setting connection to the Postgres URI allows you to also set the connection.ssl options.

[thetutlage]

The types are broken after the change, can you please look into it?

[loadnull]

Just tried npx tsc on a fresh clone of the develop branch and it fails with the same error so it's not specific to this PR.

Not sure how to resolve.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.