Bump OpenAI from 2.1.0 to 2.5.0 (#125)

---
updated-dependencies:
- dependency-name: OpenAI
  dependency-version: 2.5.0
  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]

Src/AiDocument/AiDocument.csproj

@@ -29,7 +29,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="OpenAI" Version="2.1.0" />
+    <PackageReference Include="OpenAI" Version="2.5.0" />
     <PackageReference Include="Spectre.Console" Version="0.53.0" />
     <PackageReference Include="Spectre.Console.Analyzer" Version="1.0.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>