nuget-azure-ad-b2c-backend: Bump the nswag-packages group with 2 updates

Bumps NSwag.AspNetCore from 14.4.0 to 14.6.1
Bumps NSwag.MSBuild from 14.4.0 to 14.6.1

---
updated-dependencies:
- dependency-name: NSwag.AspNetCore
  dependency-version: 14.6.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nswag-packages
- dependency-name: NSwag.MSBuild
  dependency-version: 14.6.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nswag-packages
...

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

Author: dependabot[bot]

samples/AzureADB2CAuth/auth-backend/Directory.Packages.props

@@ -9,8 +9,8 @@
     <PackageVersion Include="Microsoft.Identity.Web" Version="3.11.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="17.14.2" />
-    <PackageVersion Include="NSwag.AspNetCore" Version="14.4.0" />
-    <PackageVersion Include="NSwag.MSBuild" Version="14.4.0" />
+    <PackageVersion Include="NSwag.AspNetCore" Version="14.6.1" />
+    <PackageVersion Include="NSwag.MSBuild" Version="14.6.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
     <PackageVersion Include="xunit.v3" Version="3.1.0" />
   </ItemGroup>