fix(runtime): 'set' on proxy:

packages/uni-app-plus/dist/index.js

@@ -1453,6 +1453,7 @@ if (typeof Proxy !== 'undefined' && "app-plus" !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value;
+      return true
     }
   });
 } else {

packages/uni-app-plus/package.json

 {
 	"name": "@dcloudio/uni-app-plus",
-	"version": "0.0.250",
+	"version": "0.0.251",
 	"description": "uni-app app-plus",
 	"main": "dist/index.js",
 	"scripts": {

packages/uni-mp-alipay/dist/index.js

@@ -2036,6 +2036,7 @@ if (typeof Proxy !== 'undefined' && "mp-alipay" !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value;
+      return true
     }
   });
 } else {

packages/uni-mp-alipay/package.json

 {
 	"name": "@dcloudio/uni-mp-alipay",
-	"version": "0.0.824",
+	"version": "0.0.825",
 	"description": "uni-app mp-alipay",
 	"main": "dist/index.js",
 	"scripts": {

packages/uni-mp-baidu/dist/index.js

@@ -1619,6 +1619,7 @@ if (typeof Proxy !== 'undefined' && "mp-baidu" !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value;
+      return true
     }
   });
 } else {

packages/uni-mp-baidu/package.json

 {
 	"name": "@dcloudio/uni-mp-baidu",
-	"version": "0.0.854",
+	"version": "0.0.855",
 	"description": "uni-app mp-baidu",
 	"main": "dist/index.js",
 	"scripts": {

packages/uni-mp-qq/dist/index.js

@@ -1500,6 +1500,7 @@ if (typeof Proxy !== 'undefined' && "mp-qq" !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value;
+      return true
     }
   });
 } else {

packages/uni-mp-qq/package.json

 {
 	"name": "@dcloudio/uni-mp-qq",
-	"version": "0.0.108",
+	"version": "0.0.109",
 	"description": "uni-app mp-qq",
 	"main": "dist/index.js",
 	"scripts": {

packages/uni-mp-toutiao/dist/index.js

@@ -1679,6 +1679,7 @@ if (typeof Proxy !== 'undefined' && "mp-toutiao" !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value;
+      return true
     }
   });
 } else {

packages/uni-mp-toutiao/package.json

 {
 	"name": "@dcloudio/uni-mp-toutiao",
-	"version": "0.0.348",
+	"version": "0.0.349",
 	"description": "uni-app mp-toutiao",
 	"main": "dist/index.js",
 	"scripts": {

packages/uni-mp-weixin/dist/index.js

@@ -1431,6 +1431,7 @@ if (typeof Proxy !== 'undefined' && "mp-weixin" !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value;
+      return true
     }
   });
 } else {

packages/uni-mp-weixin/package.json

 {
 	"name": "@dcloudio/uni-mp-weixin",
-	"version": "0.0.970",
+	"version": "0.0.971",
 	"description": "uni-app mp-weixin",
 	"main": "dist/index.js",
 	"scripts": {

src/core/runtime/index.js

@@ -72,6 +72,7 @@ if (typeof Proxy !== 'undefined' && __PLATFORM__ !== 'app-plus') {
     },
     set (target, name, value) {
       target[name] = value
+      return true
     }
   })
 } else {