I have a server action that tells the client whether it is logged in by checking their cookies. When the user logs in or logs out I need this server action to be re-run. How do I do this? I've tried using revalidatePath but can't get it working. I don't see any concrete example on the docs either. Currently I am stuck getting 'Error: Invariant: static generation store missing in revalidateTag' errors (when using revalidatePath)