Bump version after release (#206)

Co-authored-by: GitHub <noreply@github.com>

Author: github-actions[bot]

package-lock.json

@@ -2,7 +2,7 @@
     "name": "vscode-azurecontainerapps",
     "displayName": "Azure Container Apps",
     "description": "%containerApps.description%",
-    "version": "0.3.0",
+    "version": "0.3.1-alpha.0",
     "publisher": "ms-azuretools",
     "icon": "resources/azure-containerapps.png",
     "aiKey": "0c6ae279ed8443289764825290e4f9e2-1a736e7c-1324-4338-be46-fc2a58ae4d14-7255",