chore: update testing-helpers dev dependency to v2.0.0 (#9251)

Author: web-padawan

package.json

@@ -40,7 +40,7 @@
     "@types/mocha": "^10.0.7",
     "@types/sinon": "^17.0.3",
     "@ungap/structured-clone": "^1.3.0",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "@web/dev-server": "^0.4.6",
     "@web/dev-server-esbuild": "^1.0.4",
     "@web/rollup-plugin-html": "^2.0.0",

packages/a11y-base/package.json

@@ -37,7 +37,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   }
 }

packages/accordion/package.json

@@ -49,7 +49,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "web-types": [

packages/app-layout/package.json

@@ -45,7 +45,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "web-types": [

packages/avatar-group/package.json

@@ -50,7 +50,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "web-types": [

packages/avatar/package.json

@@ -46,7 +46,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "web-types": [

packages/board/package.json

@@ -45,7 +45,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "cvdlName": "vaadin-board",

packages/button/package.json

@@ -47,7 +47,7 @@
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/icon": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "web-types": [

packages/card/package.json

@@ -42,7 +42,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "web-types": [

packages/charts/package.json

@@ -44,7 +44,7 @@
   "devDependencies": {
     "@vaadin/chai-plugins": "25.0.0-alpha1",
     "@vaadin/test-runner-commands": "25.0.0-alpha1",
-    "@vaadin/testing-helpers": "^1.1.0",
+    "@vaadin/testing-helpers": "^2.0.0",
     "sinon": "^18.0.0"
   },
   "cvdlName": "vaadin-chart",