Upgrade various dependencies with advisory warnings

[davidmrdavid]

As of recently, building the DTFx project failed with errors of the following kind:

"Warning as Error: Package has a known high severity vulnerability" and it points to this advisory: "

The warnings were for:

• Newtonsoft.Json < 13.0.1, which linked to: https://github.com/advisories/GHSA-5crp-9r3c-p9vr
• System.Data.SqlClient < 4.8.5, which linked to: https://github.com/advisories/GHSA-8g2p-5pqh-5jmc

In this PR, I upgrade these dependencies to remove the warnings. In particular,

• We upgrade System.Data.SqlClient to 4.8.5. This is only used in our test project, so it's safe.

• We upgrade Newtonsoft.Json to 13.0.1 across the board. This is potentially less safe as it's a major version upgrade, and it's used in of the projects contained within the DurableTask.sln solution.

While making this upgrade, I also noticed that we reference Newtonsoft.Json in almost every .csproj despite it being a transitive dependency. To minimize our management burden in the future, I removed this transitive dependency from those .csprojs.

[davidmrdavid]

Replaced by: https://github.com/Azure/durabletask/pull/1023