Add redirect for /licenseKey/ in licensing documentation.

Author: maartenba

src/content/docs/general/licensing.md

@@ -5,6 +5,7 @@ sidebar:
   order: 1
 redirect_from:
   - /licensekey/
+  - /licenseKey/
   - /trial-mode/
   - /identityserver/v5/fundamentals/license_key/
   - /identityserver/v6/fundamentals/license_key/