Update dependency pg to v8.11.5

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pg (source)	8.11.3 -> 8.11.5

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Release Notes

brianc/node-postgres (pg)

### [`v8.11.5`](https://togithub.com/brianc/node-postgres/compare/pg@8.11.4...pg@8.11.5) [Compare Source](https://togithub.com/brianc/node-postgres/compare/pg@8.11.4...pg@8.11.5) ### [`v8.11.4`](https://togithub.com/brianc/node-postgres/compare/pg@8.11.3...b03c071d2d15af259e1e008e9628191c865e58fa) [Compare Source](https://togithub.com/brianc/node-postgres/compare/pg@8.11.3...pg@8.11.4)

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