New boot entry on UEFI is lost unless existing ones are removed

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**Describe the issue**
I have installed multiple Linux distros (ArchLinux, VoidLinux, etc) inside UTM VMs and after adding the EFI entry and ensuring that there is a EFI boot entry using `efibootmgr`, the system forgets the boot entry, no matter how many times I do this process. However, once I remove one existing boot entry, then the system stops forgetting the newly added EFI entry.

I don't know if this issue is specific to UTM, but given that this issue does not occur on Physical Machines (which I checked multiple times), I believe it is related to at least a component inside UTM. My best guess is that the VM that UTM configures for us inside QEMU has a hard limit of how many boot entry the firmware can handle.

If you need any information from me, I would be happy to provide.

**Configuration**
* UTM Version:
* macOS Version:
* Mac Chip (Intel, M1, ...):

**Crash log**
Not Applicable.

**Debug log**
I don't have Debug Log now because I have fixed the issue but if the above description is not sufficient to recreate this issue, I can do everything so that relevant Debug Log is created.

**Upload VM**
The issue is not related to a specific VM. However, if you need it, here it is:

```

Backend
QEMU
ConfigurationVersion
4
Display


DownscalingFilter
Linear
DynamicResolution

Hardware
virtio-gpu-gl-pci
NativeResolution

UpscalingFilter
Nearest


Drive


Identifier
FEFBAC5B-147E-4AF5-ABA0-7175930CB920
ImageType
CD
Interface
USB
InterfaceVersion
1
ReadOnly



Identifier
C515E7F0-A6D4-4894-99B4-913336AD23C8
ImageName
C515E7F0-A6D4-4894-99B4-913336AD23C8.qcow2
ImageType
Disk
Interface
VirtIO
InterfaceVersion
1
ReadOnly



Information

Icon
linux
IconCustom

Name
VoidLinux(XFCE)
UUID
22148880-E17F-4270-8F6E-01E7B4FFAB3B

Input

MaximumUsbShare
3
UsbBusSupport
3.0
UsbSharing


Network


Hardware
virtio-net-pci
IsolateFromHost

MacAddress
22:14:31:41:6C:31
Mode
Shared
PortForward



QEMU

AdditionalArguments

BalloonDevice

DebugLog

Hypervisor

PS2Controller

RNGDevice

RTCLocalTime

TPMDevice

TSO

UEFIBoot


Serial

Sharing

ClipboardSharing

DirectoryShareMode
VirtFS
DirectoryShareReadOnly


Sound


Hardware
intel-hda


System

Architecture
aarch64
CPU
cortex-a72
CPUCount
1
CPUFlagsAdd

CPUFlagsRemove

ForceMulticore

JITCacheSize
0
MemorySize
1024
Target
virt

```