fix(deps): update dependency pg to v8.12.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pg (source)	8.11.5 -> 8.12.0

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Release Notes

brianc/node-postgres (pg)

### [`v8.12.0`](https://togithub.com/brianc/node-postgres/blob/HEAD/CHANGELOG.md#pg8120) [Compare Source](https://togithub.com/brianc/node-postgres/compare/pg@8.11.6...pg@8.12.0) - Add `queryMode` config option to [force use of the extended query protocol](https://togithub.com/brianc/node-postgres/pull/3214) on queries without any parameters. ### [`v8.11.6`](https://togithub.com/brianc/node-postgres/compare/pg@8.11.5...2c3c6264db9d2c5d390a87c3ce958c6d71d444e1) [Compare Source](https://togithub.com/brianc/node-postgres/compare/pg@8.11.5...pg@8.11.6)

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