deps: update pg-types to 2

[bendrucker]

pg-types@2 drops node < 4 support but pg previously did so, so the upgrade isn't major for pg itself

See also: brianc/node-pg-types#76

[bendrucker]

@brianc If you're interested, happy to take on some issue/PR grooming here as well. Up to you whether you'd like to include npm publish too.

[brianc]

If you're interested, happy to take on some issue/PR grooming here as well. Up to you whether you'd like to include npm publish too.

I'd love that - I try to stay on top of things but its been only me and @charmander for years now & additional help would be welcome. ❤️

[brianc]

Just to confirm - this is semver patch for this library once we merge this?

[bendrucker]

this is semver patch for this library once we merge this

Yup! Because {"engines": {"node": ">= 4"}} was declared in an earlier release, it's not breaking to upgrade pg-types to a version that has the same version requirements (where it previously had none).

[brianc]

sweet! merging now & releasing. Gonna release semver minor because this was added which is technically a new feature.