Bump Swashbuckle.AspNetCore from 9.0.3 to 9.0.4 (#276)

---
updated-dependencies:
- dependency-name: Swashbuckle.AspNetCore
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

GraphQLNetExample/GraphQLNetExample.csproj

@@ -21,7 +21,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.3" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.4" />
   </ItemGroup>
 
 </Project>