Update dependency org.postgresql:postgresql to v42.7.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.postgresql:postgresql (source)	42.7.2 -> 42.7.3

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Release Notes

pgjdbc/pgjdbc (org.postgresql:postgresql)

### [`v42.7.3`](https://togithub.com/pgjdbc/pgjdbc/blob/HEAD/CHANGELOG.md#4273-2024-04-14-145100--0400) ##### Changed - chore: gradle config enforces 17+ [PR #​3147](https://togithub.com/pgjdbc/pgjdbc/pull/3147) ##### Fixed - fix: boolean types not handled in SimpleQuery mode [PR #​3146](https://togithub.com/pgjdbc/pgjdbc/pull/3146) - make sure we handle boolean types in simple query mode - support uuid as well - handle all well known types in text mode and change `else if` to `switch` - fix: released new versions of 42.2.29, 42.3.10, 42.4.5, 42.5.6, 42.6.2 to deal with `NoSuchMethodError on ByteBuffer#position` when running on Java 8

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