refactor: 车牌输入逻辑调整

src/views/Parking/Parking.vue

@@ -73,8 +73,7 @@ function handleKeyboard(item) {
       (isEnergy.value && license.value.length >= ENERGY_PLATE) ||
       (license.value.length === 0 && !isZhWord(item)) ||
       (license.value.length === 1 && !isUppercaseWord(item)) ||
-      (license.value.length > 1 && license.value.length <= 8 && isZhWord(item)) ||
-      (license.value.length >= 7 && (isZhWord(item) || isUppercaseWord(item)))
+      (license.value.length >= 2 && license.value.length < 6 && isZhWord(item))
     ) {
       return
     }