CI: Add ARM builder

Do a ZFS build inside of an ARM runner.  This only does a simple
build, it does not run the test suite.  The build runs on the
runner itself rather than in a VM, since nesting is not supported on
Github ARM runners.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #18343

.github/workflows/zfs-qemu.yml

@@ -118,7 +118,7 @@ jobs:
 
     - name: Install dependencies
       timeout-minutes: 60
-      run: .github/workflows/scripts/qemu-3-deps.sh ${{ matrix.os }} ${{ github.event.inputs.fedora_kernel_ver }}
+      run: .github/workflows/scripts/qemu-3-deps.sh --poweroff ${{ matrix.os }} ${{ github.event.inputs.fedora_kernel_ver }}
 
     - name: Build modules
       timeout-minutes: 30