Moving the `.gitconfig` file from the runner host into the working directory doesn't follow symlinks

[some-natalie]

My ~/.gitconfig file on my laptop is actually a symlink to a file that's managed in my dotfiles repository. I've been doing some local development and tried using my Mac laptop as a runner. More or less works alright. When the checkout job tries to move a symlink into the working directory, it breaks.

Here's the error (source workflow run):

Copying '/Users/natalie/.gitconfig' to '/Users/natalie/actions-runner/_work/_temp/ae6dedec-eb27-4878-834d-b00a2ed61f25/.gitconfig'
Temporarily overriding HOME='/Users/natalie/actions-runner/_work/_temp/ae6dedec-eb27-4878-834d-b00a2ed61f25' before making global git config changes
Adding repository directory to the temporary git global config as a safe directory
/usr/bin/git config --global --add safe.directory /Users/natalie/actions-runner/_work/kubernoodles/kubernoodles
Error: error: could not lock config file /Users/natalie/actions-runner/_work/_temp/ae6dedec-eb27-4878-834d-b00a2ed61f[25](https://github.com/some-natalie/kubernoodles/actions/runs/8838270646/job/24269180087#step:2:27)/.gitconfig: No such file or directory
Failed to initialize safe directory with error: Error: The process '/usr/bin/git' failed with exit code 255

Removing the symlink and copying the file from the dotfiles repository into ~/.gitconfig fixes this.

Seems like unexpected behavior given that using a dotfiles repository isn't uncommon. ✨