CI ARM: fix qemu not being present in U24.04

the package `qemu` is no longer present in U24.04, which is now
ubuntu-latest default Ubuntu version as a GH runner. But we don't need
it, we use just the static version (qemu-user-static).

Author: MartinPulec

.github/workflows/arm-build.yml

@@ -34,7 +34,7 @@ jobs:
     - name: Prepare
       run: |
         sudo apt update
-        sudo apt install binfmt-support curl qemu qemu-user-static
+        sudo apt install binfmt-support curl qemu-user-static
 
     - name: Fetch SDKs ETags
       id: etags