Bump System.Threading.Tasks.Extensions from 4.6.1 to 4.6.3 (#1187)

---
updated-dependencies:
- dependency-name: System.Threading.Tasks.Extensions
  dependency-version: 4.6.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -56,6 +56,6 @@
     <PackageVersion Include="System.Text.Json" Version="9.0.2" />
     <PackageVersion Include="System.Threading.Channels" Version="9.0.2" />
     <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="8.0.1" />
-    <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.1" />
+    <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
   </ItemGroup>
 </Project>