Bump CommunityToolkit.Diagnostics from 8.2.0 to 8.4.0 (#1)

---
updated-dependencies:
- dependency-name: CommunityToolkit.Diagnostics
  dependency-version: 8.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pwsh-prompt.csproj

@@ -31,7 +31,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="CommunityToolkit.Diagnostics" Version="8.2.0" />
+        <PackageReference Include="CommunityToolkit.Diagnostics" Version="8.4.0" />
         <PackageReference Include="Microsoft.Extensions.Primitives" Version="10.0.0" />
         <PackageReference Include="Spectre.Console" Version="0.47.0" />
         <PackageReference Include="Spectre.Console.Analyzer" Version="1.0.0" PrivateAssets="All" />