network: Add stable-ssid support for cloned-mac

NetworkManager 1.46.0 added support for "stable-ssid" for cloned mac, which generates a stable MAC address based on SSID for each network.

This got accepted as the new default for Fedora 40, see https://fedoraproject.org/wiki/Changes/StableSSIDMACAddress and https://pagure.io/fesco/issue/3135.

However, there is no support for the connection editor for this value, meaning if "stable-ssid" is set, changes to a WiFi network can't be applied.

Fix this by adding support for "stable-ssid". Essentially based on network-manager-applet!143 (merged) (network-manager-applet@202149c0).

Closes #2852 (closed)