chore: bump itext.bouncy-castle-adapter from 8.0.5 to 9.6.0

---
updated-dependencies:
- dependency-name: itext.bouncy-castle-adapter
  dependency-version: 9.6.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/dependabot.yml

@@ -8,6 +8,11 @@ updates:
       prefix: "chore(deps)"
     labels:
       - dependencies
+    groups:
+      itext:
+        patterns:
+          - "itext*"
+          - "BouncyCastle.Cryptography"
 
   - package-ecosystem: github-actions
     directory: /

Panels/Panels.csproj

@@ -22,8 +22,8 @@
 
   <ItemGroup>
     <AppDesigner Include="Properties\" />
-    <PackageReference Include="itext" Version="8.0.5" />
-    <PackageReference Include="itext.bouncy-castle-adapter" Version="8.0.5" />
+    <PackageReference Include="itext" Version="9.6.0" />
+    <PackageReference Include="itext.bouncy-castle-adapter" Version="9.6.0" />
     <PackageReference Include="BouncyCastle.Cryptography" Version="2.6.2" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageReference Include="YamlDotNet" Version="16.3.0" />