chore: Enable europe-north2

PiperOrigin-RevId: 874828330

Author: vertex-sdk-bot

google/cloud/aiplatform/constants/base.py

@@ -35,6 +35,7 @@
         "australia-southeast2",
         "europe-central2",
         "europe-north1",
+        "europe-north2",
         "europe-southwest1",
         "europe-west1",
         "europe-west2",