ci: 优化 DMG 文件命名逻辑

- 修改 DMG 文件命名规则，针对 aarch64 架构进行特殊处理
- 使用条件表达式判断目标架构，确保 DMG 文件名正确反映架构类型

Author: allentown521

.github/workflows/package.yml

@@ -157,7 +157,7 @@ jobs:
               run: |
                   # Set paths
                   app_path="src-tauri/target/${{ matrix.target }}/release/bundle/macos/Saladict.app"
-                  dmg_path="src-tauri/target/${{ matrix.target }}/release/bundle/dmg/Saladict_${{needs.change-version.outputs.version}}_${{ matrix.target }}.dmg"
+                  dmg_path="src-tauri/target/${{ matrix.target }}/release/bundle/dmg/Saladict_${{needs.change-version.outputs.version}}_${{ contains(matrix.target, 'aarch64') && 'aarch64' || 'x86_64' }}.dmg"
                   ocr_arm64_path="${app_path}/Contents/Resources/resources/ocr-aarch64-apple-darwin"
                   ocr_x86_path="${app_path}/Contents/Resources/resources/ocr-x86_64-apple-darwin"