Bump Npgsql from 8.0.2 to 8.0.3 in /src/Serilog.Sinks.Postgresql.Alternative

[dependabot[bot]]

Bumps Npgsql from 8.0.2 to 8.0.3.

Release notes

Sourced from Npgsql's releases.

v8.0.3

This version contains a high-severity security patch for CVE-2024-32655 everyone is advised to upgrade.

A large number of number of bugs have been fixed, here is the full list.

Thanks to @​paul-gerste-sonarsource for reporting the vulnerability.

Commits

• c5aab16 Ignore multirange test pre PG 14
• d674f28 Fix replication message writing
• 091655e Merge pull request from GHSA-x9vc-6hfv-hg8c
• be50041 Fix output parameter population in batch commands (#5644)
• 5fd00dd Buffer over-read with ArrayNullabilityMode.PerInstance (#5675)
• 58b9a1b Start loading composite types before ranges (#5651)
• 4e5fb5a Add [Experimental] to converter-related APIs (#5668)
• 6927b98 Add ifdef for missing BitConverter.Int32BitsToSingle on ns2.0
• 1b93828 GetChars fix and infra cleanup (#5618)
• 07a0702 Require binary format in binary importer (#5648)
• Additional commits viewable in compare view

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