Deploy compressed graph in production kubernetes node

Currently, the production compressed graph is deployed on a static node (granet.i.s.o). We deployed a new graph compressed instance (with the same dataset as granet's) on rancher-node-metal05 only exposed through the webapp-postgresql webapp instance [1]

The plan is to reuse that graph instance as the main graph instance.

We can switch over the webapp-postgres to reuse granet's compressed graph instance (so we can still later on compare results if need be).

Requirements: Granet will remain as-is for the time being.

[1] #5448 (closed)