There is an updated pull request by jirutka against master on the void-packages repository

https://github.com/jirutka/void-packages connman-iwd
https://github.com/void-linux/void-packages/pull/31916

connman: build with --enable-iwd, add build option "nftables", split openconnect plugin, remove runtime dependency on wpa_supplicant
1. Build with --enable-iwd

    iwd is a better alternative to wpa_supplicant.

1. Add build option "nftables"

    Allow to build with support for nftables instead of iptables.
    
    From ./configure --help:
    
        --with-firewall=TYPE    specify which firewall type is used iptables or
                                nftables [default=iptables]

1. Split openconnect plugin into subpackage
    
    OpenConnect VPN is not widely used and it adds many dependencies to the connman package. On my system, removing openconnect orphaned the following packages: openconnect trousers vpnc-scripts libpcsclite mit-krb5-libs with total size over 5 MiB.

1. Remove runtime dependency on wpa_supplicant
    
    ConnMan can be used with iwd or even without any WiFi program, because it can be used for Ethernet devices.

A patch file from https://github.com/void-linux/void-packages/pull/31916.patch is attached