Bump Npgsql from 6.0.2 to 6.0.3

Created by: dependabot[bot]

Bumps Npgsql from 6.0.2 to 6.0.3.

Release notes

Sourced from Npgsql's releases.

v6.0.3

6.0.3 contains important bug fixes, everyone is strongly encouraged to upgrade.

The full list of changes is available here.

Commits

• ed59682 Fix clear pool stack overflow for broken connections (#4294)
• 22f43e7 Disallow SslMode.VerifyCA/Full with user callback (#4293)
• f867ae6 Add type loading for logical replication connections (#4287)
• 9dbddcf Add fallback for PostGIS CI installation on Windows (#4289)
• df6daab Fix NodaTime reading logic for legacy timestamptz (#4290)
• db1156e Update Npgsql.OpenTelemetry README doc link
• 061cccc Fix cloning NRE, closes #4281 (#4283)
• 15ba97d Fix few NpgsqlBatch methods not passing CommandBehavior (#4272)
• 528cbe9 Mark physical callback open APIs with [RequiresPreviewFeature] (#4270)
• 85ee252 Stop doing N*N looping for parameter validation (#4265)
• Additional commits viewable in compare view

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