fix: no supportfile + no specs, vite don't crash

When there is no values, in the optimization array,
supportFile can be a boolean. the final optimized entry passed to
fast-glog is then `[false]` whic crashes cypress.

This protects against the no-spec issue

closes #17373

npm/vite-dev-server/src/startServer.ts

@@ -59,7 +59,9 @@ const resolveServerConfig = async ({ viteConfig, options }: StartDevServerOption
   // Ask vite to pre-optimize all dependencies of the specs
   finalConfig.optimizeDeps = finalConfig.optimizeDeps || {}
 
-  finalConfig.optimizeDeps.entries = [...options.specs.map((spec) => spec.relative), supportFile]
+  if (options.specs.length || supportFile) {
+    finalConfig.optimizeDeps.entries = [...options.specs.map((spec) => spec.relative), supportFile]
+  }
 
   debug(`the resolved server config is ${JSON.stringify(finalConfig, null, 2)}`)