Bump the dotnet group with 1 update (#3835)

Bumps Swashbuckle.AspNetCore from 8.1.4 to 9.0.1

---
updated-dependencies:
- dependency-name: Swashbuckle.AspNetCore
  dependency-version: 9.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dotnet
...

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

Author: dependabot[bot]

docs/extensibility/snippets/MailDevResourceWithCredentials/MailDevResource.NewsletterService/MailDevResource.NewsletterService.csproj

@@ -2,7 +2,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.6" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="8.1.4" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.1" />
   </ItemGroup>
 
   <ItemGroup>