Bump MailKit from 4.7.1.1 to 4.8.0

[dependabot]

Bumps MailKit from 4.7.1.1 to 4.8.0.

Changelog

Sourced from MailKit's changelog.

MailKit 4.8.0 (2024-09-29)

• Added a UniqueIdRange.SortOrder property.
• Updated the protocol log help link for ProtocolExceptions. (issue #1800)
• Fix SmtpClient.Dispose() when telemetry is configured. (issue #1816)
• Added ProxyClient.SystemProxy as a convenience property that wraps the default system proxy (aka HttpClient.DefaultProxy) on net6.0+.

MailKit 4.7.1 (2024-07-12)

• Fixed ImapClient and Pop3Client.Connect/Async() when OTEL is enabled. (issue #1765)
• Bumped MimeKit dependency to 4.7.1 to fix a denial of service security issue in the System.Formats.Asn1 dependency.

MailKit 4.7.0 (2024-06-29)

• Added Activity/Metrics for Imap/Pop3/SmtpClient. (issue #1499)
• Bumped MimeKit dependency to 4.7.0.

MailKit 4.6.0 (2024-05-17)

• Swallow SMTP RSET exceptions. These obscure other Send/SendAsync exceptions. Fixes a regression introduced in 4.4.0. (issue #1748)
• Fixed ImapUtils.FormatInternalDate() to properly handle negative timezone offsets with non-zero minutes. (issue #1743)
• Bumped MimeKit dependency to 4.6.0.

MailKit 4.5.0 (2024-04-13)

• Added a new SmtpClient.RequireTLS property to fix sending mail via Strato.de. (issue #1737)
• Fixed SmtpClient to track the most recent response from the SMTP server in order to include it in SmtpProtocolExceptions caused by unexpected server disconnects to provide more context. (issue #1744)
• Bumped MimeKit dependency to 4.5.0.

MailKit 4.4.0 (2024-03-02)

• Added net8.0 targets
• Split more sync/async logic to reduce allocations made by async state machines when calling the synchronous public APIs instead of the async APIs. (issue #1335)
• Fixed logic for formatting IMAP FETCH HEADER.FIELDS.NOT corner case that was exposed by newly added unit tests.
• Fixed SmtpClient to disconnect during Authenticate/Async on socket errors.
• Fixed SmtpClient's re-EHLO logic to disconnect on errors.

... (truncated)

Commits

• 8fd2a69 Bumped version to 4.8.0
• c5ee1a3 Added ProxyClient.SystemProxy
• 09851bd Fixed ProxyClient.Connect/Async docs for host & port parameters
• e3790d9 Updated GMail SSL certificates
• a9214bb Explicitly depend on System.Runtime.CompilerServices.Unsafe 6.0.0
• 41ea9de Bump NUnit.ConsoleRunner from 3.18.1 to 3.18.2 (#1818)
• 6887154 Updated SSL certificates
• 7e6c440 Update main.yml
• 0fb7ad9 Fix SmtpClient.Dispose() when telemetry is configured
• 00a6dc2 Bump Microsoft.NET.Test.Sdk from 17.11.0 to 17.11.1 (#1813)
• Additional commits viewable in compare view

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