Bump System.Text.Json from 8.0.5 to 10.0.7

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-version: 10.0.7
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/Fdc3.Json/Finos.Fdc3.Json.csproj

@@ -35,7 +35,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="System.Text.Json" Version="8.0.5" />
+        <PackageReference Include="System.Text.Json" Version="10.0.7" />
     </ItemGroup>
 
     <ItemGroup>