Updates for .NET 8 (Particular#6981)

Co-authored-by: internalautomation[bot] <85681268+internalautomation[bot]@users.noreply.github.com>

Prepare repo for RTM (Particular#6950)

* Update NServiceBus.MessageInterfaces

* Update Microsoft.CodeAnalysis.CSharp.Workspaces

* Add roslyn version to analyzer package path

* Update Microsoft.NET.Test.Sdk

Bump Particular/push-octopus-package-action from 1.2.0 to 1.2.1

Bumps [Particular/push-octopus-package-action](https://github.com/particular/push-octopus-package-action) from 1.2.0 to 1.2.1.
- [Commits](Particular/push-octopus-package-action@v1.2.0...v1.2.1)

---
updated-dependencies:
- dependency-name: Particular/push-octopus-package-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Make sure transport operations do not share mutable state between mul…

…tiple routing strategies (Particular#6905) (Particular#6909)

* Add routing to dispatch connector tests to reproduce the shared state problem

* Fix the state sharing problem in ToTransportOperation

* Cross check headers and properties

* Test for the header modifications in the routing strategy

* add acceptance test

* better naming and comments

* block scoped namespace

* Remove left overs

* Move test

* Primary ctor

* Behavior

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Co-authored-by: Tim Bussmann <timbussmann@users.noreply.github.com>

Make sure transport operations do not share mutable state between mul…

…tiple routing strategies (Particular#6905) (Particular#6910)

* Add routing to dispatch connector tests to reproduce the shared state problem

* Fix the state sharing problem in ToTransportOperation

* Cross check headers and properties

* Test for the header modifications in the routing strategy

* add acceptance test

* better naming and comments

* block scoped namespace

* Remove left overs

* Move test

* Primary ctor

* Behavior

---------

Co-authored-by: Tim Bussmann <timbussmann@users.noreply.github.com>

Add top-level reference to System.Security.Cryptography.Pkcs (Particu…

…lar#6900)

Add top-level reference to System.Security.Cryptography.Pkcs (Particu…

…lar#6901)

* Update System.Security.Cryptography.Xml to 7.0.1

* Add top-level reference to System.Security.Cryptography.Pkcs

DTC test cleanup round 2 (Particular#6896)

* Remove duplicate test

* Don't set TransportTransactionMode in default test