Update dependency MailKit to v2.10.0 - autoclosed

This MR contains the following updates:

Package	Type	Update	Change
MailKit (source)	nuget	minor	2.9.0 -> 2.10.0

---

Release Notes

jstedfast/MailKit

v2.10.0

Compare Source

• Don't enable support for TLS v1.1 by default anymore. (issue #​1077)
• Added support for the SCRAM-SHA-512 SASL mechanism. (issue #​1097)
• Added support for the OAUTHBEARER SASL mechanism.
• Updated SSL certificate info for the common mail servers (GMail, outlook.com, Yahoo! Mail, etc).
• Improved the SslHandshakeException error message to report common mistakes like trying to initiate an SSL connection on a non-SSL port.
• Improved IMAP's "Unexpected token" exception messages a bit
• Updated code to use ArrayPools from System.Buffers.

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by WhiteSource Renovate. View repository job log here.