[rennes] abacus - separate abacus-22 in 2 clusters

data/grid5000/accesses/refrepo.json

...5000/sites/rennes/clusters/abacus22/nodes/abacus22-1.json

...5000/sites/rennes/clusters/abacus22/nodes/abacus22-2.json

data/grid5000/sites/rennes/clusters/abacus23/abacus23.json

...5000/sites/rennes/clusters/abacus23/nodes/abacus23-1.json

.../sites/rennes/network_equipments/swdc-a035-01-02-rba.json

input/grid5000/access/rennes.yaml

input/grid5000/ipv4.yaml

input/grid5000/sites/rennes/clusters/abacus22/abacus22.yaml

input/grid5000/sites/rennes/clusters/abacus23/abacus23.yaml

...5000/sites/rennes/clusters/abacus23/abacus23_metrics.yaml

...5000/sites/rennes/clusters/abacus23/nodes/abacus23-1.yaml

...t/grid5000/sites/rennes/networks/swdc-a035-01-02-rba.yaml

lib/refrepo/valid/data/homogeneity.yaml.erb