ci: update macOS runners from macos-13 to macos-14

The macOS-13 runner images have been retired by GitHub.
Update to macos-14 and macos-14-xlarge respectively.

See: https://github.com/actions/runner-images/issues/13046

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/build.yml

@@ -81,13 +81,13 @@ jobs:
             run_configure: "./.github/workflows/scripts/configure-win.sh"
 
           - platform: x86_64-apple-darwin
-            runs_on: macos-13
+            runs_on: macos-14
             shell: bash -e {0}
             run_prerequisites: "./.github/workflows/scripts/prerequisites-macos.sh"
             run_configure: "./.github/workflows/scripts/configure-macos.sh"
 
           - platform: aarch64-apple-darwin
-            runs_on: macos-13-xlarge
+            runs_on: macos-14-xlarge
             shell: bash -e {0}
             run_prerequisites: "./.github/workflows/scripts/prerequisites-macos.sh"
             run_configure: "./.github/workflows/scripts/configure-macos.sh"
@@ -138,6 +138,11 @@ jobs:
         run: |
           ninja -C build install
 
+      - name: Bundle Windows DLLs (${{ matrix.target }} @ ${{ matrix.platform }})
+        if : ${{ matrix.platform == 'x86_64-w64-mingw32' }}
+        run: |
+          ./.github/workflows/scripts/bundle-win-dlls.sh install/qemu/bin
+
       - name: Package (${{ matrix.target }} @ ${{ matrix.platform }})
         env:
           VERSION: ${{ needs.Vars.outputs.VERSION }}