package.json: Reference PoC feature branch as dependency

Author: RandomByte

package.json

@@ -98,7 +98,7 @@
 	"dependencies": {
 		"@ui5/builder": "^1.4.0",
 		"@ui5/logger": "^1.0.1",
-		"@ui5/server": "^1.3.0",
+		"@ui5/server": "SAP/ui5-server#feature-proxy",
 		"graceful-fs": "^4.2.0",
 		"js-yaml": "^3.13.1",
 		"mock-require": "^3.0.3",