fix: 义工号不是必填项，移除*标记

components/pages/loginRegister/index.vue

@@ -133,7 +133,7 @@
 						</view>
 					</view>
 					<view class="member-pre adfac">
-						<view class="member-pre-title"><span>*</span>义工号</view>
+						<view class="member-pre-title">义工号</view>
 						<view class="member-pre-content">
 							<input v-model="memberInfo.volunteerNo" style="font-size: 30rpx;color: #252525;text-align: right;" placeholder-style="color: #A1A4A9;font-size: 28rpx;" placeholder="请输入义工号"></input>
 						</view>