Update to IHostBuilder style

[justindbaur]

🎟️ Tracking

📔 Objective

Update to a style that is not obsoleted in .NET 10.

https://learn.microsoft.com/en-us/dotnet/core/compatibility/aspnet-core/10/webhostbuilder-deprecated

📸 Screenshots

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 38efe787-3aa0-41ca-a277-016601e38896

Fixed Issues (1)

Great job! The following issues were fixed in this Pull Request

Severity	Issue	Source File / Package
	CSRF	/src/Api/Billing/Controllers/VNext/AccountBillingVNextController.cs: 80

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.01%. Comparing base (2e0e103) to head (3967984).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6843   +/-   ##
=======================================
  Coverage   56.01%   56.01%           
=======================================
  Files        1965     1965           
  Lines       86886    86886           
  Branches     7740     7740           
=======================================
  Hits        48665    48665           
  Misses      36421    36421           
  Partials     1800     1800           

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud