Add support for JSON schema in gRPC requests

We were previously just using generic JSON, which could cause mismatches when using the typed API

Improve sanity check test

Bump the tests group with 1 update

Bumps coverlet.collector from 6.0.4 to 8.0.0

---
updated-dependencies:
- dependency-name: coverlet.collector
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: tests
...

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

Close #cli section before sponsors in main readme

Co-authored-by: kzu <169707+kzu@users.noreply.github.com>

⬆️ Bump files with dotnet-file sync

Improve search results by including xAI and Grok


In the description, but without the / since it seems nuget.org doesn't consider them two separate terms otherwise.

Improve content type detection from responses (#49)

And also default format to Uri if not provided via request options.

⬆️ Bump files with dotnet-file sync