Bump MimeKit from 2.15.1 to 3.6.0

[dependabot]

Bumps MimeKit from 2.15.1 to 3.6.0.

Changelog

Sourced from MimeKit's changelog.

MimeKit 3.6.0 (2023-03-04)

• Added the .msg <-> application/vnd.ms-outlook mime-type mapping. (issue #880)
• Improved encoding/formatting of List-Archive, List-Help, List-Post, List-Subscribe and List-Unsubscribe headers. (issue #885)
• Reduced memory allocations when encoding the mailbox/group names.
• Added more Rfc2047.EncodePhrase()/EncodeText() overloads that take startIndex and count arguments.
• Fixed parsing of Message-Id's containing a quoted string dot-atom (among regular dot-atoms). (issue #889)
• Fixed a bug in the parsing of HTML <script> content that sometimes caused a character to be duplicated.
• Use MailMessage.HeadersEncoding when coverting a MailMessage to a MimeMessage.
• Improved the UrlScanner to accept urls like https://example.com?query (issue #897)

MimeKit 3.5.0 (2023-01-28)

• Fixed potential NRE's in the GnuPG config parser
• Modified AsBouncyCastleCertificate() extension method to throw on fail
• Added Clone() methods to ContentType, ContentDisposition and Parameter.

MimeKit 3.4.3 (2022-11-25)

• Fixed a variety of memory leaks revealed by (issue #852)
• Fixed the message/delivery-status parser to handle extra blank lines between status groups. (issue #855)
• Updated packages to explicitly depend on System.Runtime.CompilerServices.Unsafe v6.0.0.
• Updated net6.0 dependencies to explicitly include System.Text.Encoding.CodePages v6.0.0.

MimeKit 3.4.2 (2022-10-24)

• Fixed MessageDeliveryStatus.ParseStatusGroups() to catch FormatException instead of ParseException. (issue #837)
• Fixed DefaultSecureMimeContext to use the correct AppData path on Windows.
• Fixed MimeMessage .ctor(params object[] args) to respect a Date header argument. (issue #840)
• Updated MIME-Type to file extension mappings to add a few missing types/extensions. (issue #844)
• Fixed address parser to no longer throw ArgumentOutOfRangeException when parsing some mailbox names. (issue #846 and #847)
• Map codepage 932 to shift_jis instead of iso-2022-jp. (issue #848)

MimeKit 3.4.1 (2022-09-12)

• Improved logic for reformatting headers when MimeMessage.WriteTo() is called with FormatOptions.International set to true.
• Fixed logic for quoting and/or encoding the MailboxAddress.Name in cases where the Name string contains quotes or parenthesis (especially when unicode characters are within the quotes or parenthesis).
• Improved logic in the address parser when it comes to unquoting mailbox names (i.o.w. unquote before decoding

... (truncated)

Commits

• 6df8222 Bumped version to 3.6.0
• 06e8773 Improved the UrlScanner to accept urls like https://example.com?query
• cdb4c4c Remove some unused using statements
• 7a1bfde Updated copyright license header
• 4f33e0f Remove unused idn property
• 6e94bad Optimize sentinel checks
• b36d763 Simplify Equals logic
• f423bb0 Fix a few more misspellings
• ed6625a Use interpolated strings when culture is not used
• 013550a Use null propagation
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)