Bump Microsoft.Extensions.AI.Abstractions from 9.7.0 to 9.8.0

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.AI.Abstractions
  dependency-version: 9.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/Cnblogs.DashScope.AI/Cnblogs.DashScope.AI.csproj

@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="JsonSchema.Net.Generation" Version="5.0.4" />
-    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.7.0" />
+    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.8.0" />
   </ItemGroup>
 
 </Project>