Bump Microsoft.Extensions.Hosting from 10.0.2 to 10.0.3

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Hosting
  dependency-version: 10.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

sample/SendMailTestApp/SendMailTestApp.csproj

@@ -14,7 +14,7 @@
     </ItemGroup>
 
     <ItemGroup>
-      <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.2" />
+      <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.3" />
     </ItemGroup>
 
     <ItemGroup>