Bump QEMU to 8.2 for FreeBSD 14.0 ARM64

For some reason we need at least QEU 8.2 for 14.0 ARM64 to properly
build. Latest version of Ubuntu doesn't have QEMU 8.2, we need to
switch to Alpine Edge to get at least 8.2.

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     name: ${{ matrix.version }} ${{ matrix.architecture.name }}
     runs-on: ubuntu-latest
-    container: ubuntu:22.04
+    container: alpine:edge
     strategy:
         fail-fast: false
         matrix:
@@ -25,7 +25,7 @@ jobs:
 
           architecture:
             - name: x86-64
-              qemu: x86
+              qemu: x86_64
 
             - name: arm64
               qemu: aarch64
@@ -46,7 +46,7 @@ jobs:
             - version: '12.4'
               architecture:
                 name: x86-64
-                qemu: x86
+                qemu: x86_64
 
     steps:
       - name: Clone Repository
@@ -56,9 +56,10 @@ jobs:
 
       - name: Install Dependencies
         run: |
-          apt update && \
-          apt install curl jq unzip \
-          "qemu-system-${{ matrix.architecture.qemu }}" -y
+          apk add --no-cache \
+            curl \
+            qemu-img \
+            "qemu-system-${{ matrix.architecture.qemu }}"
 
       - uses: hashicorp/setup-packer@main
         with:
@@ -69,10 +70,6 @@ jobs:
       #   with:
       #     limit-access-to-actor: true
 
-      - name: Install UEFI
-        if: matrix.architecture.name == 'arm64'
-        run: cp "$(cat /usr/share/qemu/firmware/60-edk2-aarch64.json | jq .mapping.executable.filename -r)" edk2-aarch64-code.fd
-
       - name: Build Image
         if: '!matrix.copy_from_previous_release'
         env:

build.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env sh
 
 set -euxo pipefail