Move MicroSD boot proxmox to eMMC

Steps

Manually deplicate partition from MicroSD to eMMC using fdisk, ignore the bios partition as EFI partition used.
Unmount old /boot/efi partition, then duplicate EFI partition using dd from MicroSD, this can keep UUID
Create PV on eMMC data partition and add it to pve VG
Move all data from old MicroSD partition to eMMC partition
```
pvmove /dev/<MicroSD partition>
```
Check structure and UUID using following command
```
lsblk -o +UUID
```
Remove MicroSD PV from pve VG using vgreduce, then use pvremove to remove PV from MicroSD
Mount new /boot/efi partition, then run grub-install to recreate grub.cfg file
Remove MicroSD from system, then reboot