Is not using systemd-resolved on the host, creating a Fedora 39 toolbox environment creates a bad symlink such that no DNS resolutions are possible.  This is a regression from previous versions of Fedora+toolbox as this has worked going back to at least Fedora 36.

This is observed in Fedora 39 Workstation that was upgraded from Fedora 38.  The issue was only observed after upgrading to Fedora 39 and creating a new Fedora 39 toolbox environment.

Reproducible: Always

Steps to Reproduce:
1. Disable systemd-resolved on host (ie, use dns=default in NetworkManager conf's [main] and disable systemd-resolved service that unfortunately doesn't play well with my ISP)
2. Create fresh toolbos: `toolbox create` `toolbox enter`
3. Attempt to dnf install/search
Actual Results:  
Errors during downloading metadata for repository 'fedora':
  - Curl error (6): Couldn't resolve host name for https://mirrors.fedoraproject.org/metalink?repo=fedora-39&arch=x86_64 [Could not resolve host: mirrors.fedoraproject.org]
Error: Failed to download metadata for repo 'fedora': Cannot prepare internal mirrorlist: Curl error (6): Couldn't resolve host name for https://mirrors.fedoraproject.org/metalink?repo=fedora-39&arch=x86_64 [Could not resolve host: mirrors.fedoraproject.org]


Expected Results:  
Resolution in the container environment matches host's effective resolv.conf settings.

$ ls -l /etc/resolv.conf 
lrwxrwxrwx. 1 root root 39 Nov 27 23:50 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

is a broken symlink.

Workaround in toolbox:
sudo unlink /etc/resolv.conf
sudo vi /etc/resolv.conf (Add in nameservers manually)