Bump Npgsql from 7.0.1 to 7.0.4 in /src/Miningcore

[dependabot[bot]]

Bumps Npgsql from 7.0.1 to 7.0.4.

Release notes

Sourced from Npgsql's releases.

v7.0.4

7.0.4 contains 7 fixes, everyone is strongly encouraged to upgrade.

The full list of changes is available here.

v7.0.2

7.0.2 contains 8 fixes, everyone is strongly encouraged to upgrade.

The full list of changes is available here.

Commits

• 72bef2b Fix deadlock while cancelling a query (#5033)
• acd3d5e Fix a possible timeout with gss/sspi auth (#5028)
• 597c481 Correct docs on DI lifetime (#5020)
• ca43399 Check the message after sending a PasswordMessage (#5006)
• 5e0141f Clone connection string builder when building data source (#5000)
• 7c19344 Add SupportsSavepoints property to NpgsqlTransaction (#4978)
• bb0623e Dispose X509Certificate2 when the connector is cleaned up (#4975)
• e9b6ea4 Fix release nuget pack in CI
• 5940643 Fix closing unpooled connection with transaction scope (#4964)
• aed225e Replace --output with --property for pack in ci to fix 7.0.2 breaking change ...
• Additional commits viewable in compare view

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