Remove the release notes length limit (loic-sharma#687)

Kudos to @dncnkrs for the original implementation. 

This allows BaGet to index packages with large release notes, like https://www.nuget.org/packages/chocolatey/0.10.6.1

Release Docker image as part of "Release" GitHub Action (loic-sharma#683

)

Add support for NuGet V2 upstream package sources (loic-sharma#630)

To configure the mirror service to use the NuGet V2 client:

```json
"Mirror": {
  "Enabled": true,
  "PackageSource": "https://www.nuget.org/api/v2/",
  "Legacy": true
},
```

Update the bindings in docker quickstart (loic-sharma#539)

Co-authored-by: Lucas Michon <[email protected]>

Support embedded package icons (loic-sharma#469)

NuGet supports embedding the package's icon into the package itself. This adds the necessary logic to support embedded icons in BaGet. This was a community contribution by @iodes

Gracefully handle mirror failures for offline scenarios (loic-sharma#448

)

Addresses loic-sharma#432

Address feedback (loic-sharma#343)

Addresses loic-sharma#341

[UI] Fix several bugs (loic-sharma#254)

[Protocol] Mirror nuget.org's undocumented protocols (loic-sharma#249)

NuGet.org uses RDF to generate its V3 API. This adds properties that aren't part of the official API, however, certain clients depend on these undocumented properties.

Add support for Google buckets storage (loic-sharma#233)