Bump DeepL.net from 1.14.0 to 1.15.0 in /YAFNET.LanguageManager

Bumps [DeepL.net](https://github.com/DeepLcom/deepl-dotnet) from 1.14.0 to 1.15.0.
- [Release notes](https://github.com/DeepLcom/deepl-dotnet/releases)
- [Changelog](https://github.com/DeepLcom/deepl-dotnet/blob/main/CHANGELOG.md)
- [Commits](DeepLcom/deepl-dotnet@v1.14.0...v1.15.0)

---
updated-dependencies:
- dependency-name: DeepL.net
  dependency-version: 1.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

YAFNET.LanguageManager/YAFNET.LanguageManager/YAFNET.LanguageManager.csproj

@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="DeepL.net" Version="1.14.0" />
+    <PackageReference Include="DeepL.net" Version="1.15.0" />
     <PackageReference Include="Google.Cloud.Translate.V3" Version="3.9.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="Nito.AsyncEx" Version="5.1.2" />