Downgrading Lombiq.Analyzers.OrchardCore back to 5.0.0 for now

Upgrading OC to 2.1.0 and Lombiq packages to latest stable

Merge branch "main" into task/system-text-json-migration

Save OrderPayment when needed for more situation (#469)

* Avoid middle layer provider to a specific action.

* Save OrderPayment when needed for more situation

Hotfix update STJ to fix NU1903 that prevents build.

error NU1903: Warning As Error: Package "System.Text.Json" 8.0.3 has a known high severity vulnerability

Fix it for real this time.

Remove obsolete custom htmlvalidate config file.

Remove obsolete custom htmlvalidate config file.

Remove obsolete custom htmlvalidate config file.

Remove obsolete custom htmlvalidate config file.