Bump itext.bouncy-castle-adapter from 9.3.0 to 9.4.0

---
updated-dependencies:
- dependency-name: itext.bouncy-castle-adapter
  dependency-version: 9.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

PdfGenerator.iTextEngine/PdfGenerator.iTextEngine.csproj

@@ -8,7 +8,7 @@
 
     <ItemGroup>
       <PackageReference Include="itext" Version="9.4.0" />
-      <PackageReference Include="itext.bouncy-castle-adapter" Version="9.3.0" />
+      <PackageReference Include="itext.bouncy-castle-adapter" Version="9.4.0" />
       <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.0" />
     </ItemGroup>