TBR todos: fix makefile (new location for node binaries)
TBR todos: fix makefile (new location for node binaries)

Use `jiri v23-profile` command to locate the platform-specific
location of the node binaries, as done in our core and syncbase
javascript repos.

Change-Id: Icfc0382e03ace4803fc5a11d80cbf503da8acde6

vanadium/todos