Update dependency org.postgresql:postgresql to v42.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.postgresql:postgresql (source)	42.2.24 -> 42.3.0

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Configuration

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[coveralls]

Pull Request Test Coverage Report for Build #705

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.605%

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Totals
Change from base Build #704:	0.0%
Covered Lines:	652
Relevant Lines:	668

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💛 - Coveralls