feat: [OSM-571] Runtime resolution fixes

[dotkas]

As expected, the previous solution was mostly PoC held together with popsicle sticks and duct-tape.

So here follows a few updates to support other asset files than the happy path supported, as well as some fail-fast guard rails to avoid the worst types of error messages.

In details:

• Added guards if trying to scan anything other than .NET Standard, .NET >= v5 or .NET Core.
• Fixed the .assets.json manifest parsing to support a JSON structure for .NET Standard as well
• Added some debug timing to see how slow the runtime assembly parsing will actually be
• Deleted the saved .assets.json fixture files in favor of generating them on the fly
• • ⚠️ ☝🏻 I'm really doing a PR soon to do this for all of the fixtures, we should not store things we can just generate automatically EDIT: I did it: https://github.com/snyk/snyk-nuget-plugin/pull/160)
• Re-introduced serial testing 😿 dotnet was going crazy on the CircleCI executors if called by 4 worker pools at once.

[snyksec]

:tada: This PR is included in version 1.29.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: