Bump System.Text.Encodings.Web from 7.0.0 to 8.0.0 in /client (#49)

Bumps [System.Text.Encodings.Web](https://github.com/dotnet/runtime) from 7.0.0 to 8.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.0...v8.0.0)

---
updated-dependencies:
- dependency-name: System.Text.Encodings.Web
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

client/packages.config

@@ -17,7 +17,7 @@
   <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="net472" />
   <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net472" />
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.2" targetFramework="net472" />
-  <package id="System.Text.Encodings.Web" version="7.0.0" targetFramework="net472" />
+  <package id="System.Text.Encodings.Web" version="8.0.0" targetFramework="net472" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />
   <package id="System.ValueTuple" version="4.5.0" targetFramework="net472" />
   <package id="TaskScheduler" version="2.10.1" targetFramework="net472" />