Enable automatic HTTPS upgrades

As of Microsoft Edge version 120, Microsoft Edge tries to upgrade HTTP navigations to HTTPS, whenever possible, to improve security. Navigations to captive portals, IP addresses, and nonunique hostnames are excluded from automatic upgrades. If this policy is enabled or not configured, automatic HTTPS upgrades are turned on by default. If this policy is disabled, Microsoft Edge doesn't attempt to upgrade HTTP connections to HTTPS. To exempt specific hostnames or hostname patterns from being upgraded, use the HttpAllowlist policy.