test(tanstackstart-react): Add canary test for latest (#18686)

Adding a canary test for tanstackstart using the latest tag. There are
also alpha and beta tags, but they don't seem to be used anymore.

see [npm tanstack/react-start
tags](https://www.npmjs.com/package/@tanstack/react-start?activeTab=versions)

Closes #18667

Author: nicohrubec

.github/workflows/canary.yml

@@ -114,6 +114,9 @@ jobs:
           - test-application: 'nuxt-4'
             build-command: 'test:build-canary'
             label: 'nuxt-4 (canary)'
+          - test-application: 'tanstackstart-react'
+            build-command: 'test:build-latest'
+            label: 'tanstackstart-react (latest)'
           - test-application: 'nestjs-11'
             build-command: 'test:build-latest'
             label: 'nestjs-11 (latest)'

dev-packages/e2e-tests/test-applications/tanstackstart-react/package.json

@@ -9,6 +9,7 @@
     "test": "playwright test",
     "clean": "npx rimraf node_modules pnpm-lock.yaml",
     "test:build": "pnpm install && pnpm build",
+    "test:build-latest": "pnpm add @tanstack/react-start@latest @tanstack/react-router@latest && pnpm install && pnpm build",
     "test:assert": "pnpm test"
   },
   "dependencies": {