Update dependency rollup-plugin-serve to v2

This MR contains the following updates:

Package	Type	Update	Change
rollup-plugin-serve	devDependencies	major	^1.0.1 -> ^2.0.0

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Release Notes

thgh/rollup-plugin-serve

v2.0.0

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packages/app-shell/package.json

@@ -33,7 +33,7 @@
         "rollup-plugin-copy": "^3.1.0",
         "rollup-plugin-delete": "^2.0.0",
         "rollup-plugin-emit-ejs": "^3.1.0",
-        "rollup-plugin-serve": "^1.0.1"
+        "rollup-plugin-serve": "^2.0.0"
     },
     "dependencies": {
         "@dbp-toolkit/auth": "^0.3.1",