Bump Npgsql from 4.1.0-preview2 to 4.1.2

[dependabot-preview]

Bumps Npgsql from 4.1.0-preview2 to 4.1.2.

Release notes

Sourced from Npgsql's releases.

Npgsql v4.1.2

Npgsql 4.1.2 includes some important bugfixes. In particular, the pooling changes in v4.1.0 introduced a bug causing idle connections to never be pruned; this has been fixed (thanks @​NinoFloris!).

The list of changes is available here.

Npgsql v4.1.1

Npgsql 4.1.0 unintentionally introduced some breaking changes which made it incompatible with some libraries (e.g. EF Core 2.2, Marten). Almost all have been rolled back and everything should work now.

In additional, two significant bugs were fixed. All users of 4.1.0 should upgrade.

The list of changes is available here.

Npgsql v4.1.0

See the release notes.

The full list of changes is available here.

Commits

• 8898b0f Merge branch 'hotfix/4.1.2'
• f86ddbe Added provider specific methods to begin transaction
• 6f9dd0b Fix idle pruning (#2732)
• 3fc4d31 Don't allow CloneWith to persist security info
• 3d0020a Guard against double pool returns from NpgsqlConnection.Close
• 307e23d Check if column is in the bounds of the array
• c7ee4b8 Exposing async dispose methods to old frameworks
• bf29cb7 Correct parameter limit check
• 8ee51ed Fixed PGPASS file name for Unix systems
• e1461ea [Appveyor] Make snupkgs artifacts
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #14.