fix: 需要时再安装qrcode app

pack-ci.sh

@@ -312,7 +312,7 @@ install_dianxin() {
         chcon u:object_r:drmserver_exec:s0 "$system_path/etc/init/$(basename "$file")"
     done
 
-    if [[ "$android_sdk" -ge 31 ]] && [[ "$INSTALL_QRCODE_APP" ]]
+    if [[ "$android_sdk" -ge 31 ]] && [[ "$INSTALL_QRCODE_APP" == "true" ]]
     then
         find ./services/ -type f -name  "*.apk" -exec install -m 0644 -t "$system_path"/preinstall/ {} \;
     fi