Restart not behaving as expected

### Description

It would appear as if the `colima restart` command doesn't behave as I would expect/imagine but maybe it's like that by design in my specific scenario.

I am running my development environment using a virtual disk image to store my code. I understand that this is sort of an edge case and the way to make it work is by explicitly mounting the virtual disk at start up which is what I did but I did it wrong and my workflow to fix it didn't work.

### Version

colima version 0.7.5
git commit: 1588c066b9ab9dae8205ef265929c7eb43dca473

runtime: docker
arch: aarch64
client: v27.2.1
server: v27.1.1
limactl version 0.23.2
qemu-img version 9.1.0
Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers

### Operating System

- [ ] macOS Intel <= 13 (Ventura)
- [ ] macOS Intel >= 14 (Sonoma)
- [ ] Apple Silicon <= 13 (Ventura)
- [X] Apple Silicon >= 14 (Sonoma)
- [ ] Linux

### Output of `colima status`

INFO[0000] colima is running using macOS Virtualization.Framework
INFO[0000] arch: aarch64
INFO[0000] runtime: docker
INFO[0000] mountType: virtiofs
INFO[0000] socket: unix:///Users/username/.colima/default/docker.sock

### Reproduction Steps

1. Start colima with the following command
```shell
~ colima start --cpu X --memory X --vm-type=vz --vz-rosetta --mount-type=virtiofs --mount=/Volumes/VirtualDisk
```
2. Realise that the disk is actually mounted as read only
3. Modify the mounts section in the `~/.colima/default/colima.yaml` file to update the `writable` option of the mounted point to `true`
4. Run the command `colima restart`
5. Realise that the volume is still mounted as readonly

### Expected behaviour

I would expect the `colima restart` to pick up the updated configuration from the file and apply it accordingly

### Additional context

My only way out of this was to run a `colima delete` and then restart it with the write option flag at start up:
```shell
~ colima start --cpu X --memory X --vm-type=vz --vz-rosetta --mount-type=virtiofs --mount=/Volumes/VirtualDisk:w
```