Check vint_runtime as well as vinternal_1 for network metrics

[astuyve]

Modifies the network check to also look at vint_runtime which is present in some runtimes instead of the vinternal_1 device
seems strange because node20 self monitoring has these metrics?

debug logs from my node20 test function:

DD_EXTENSION | DEBUG | astuyve line "Inter-|   Receive                                                |  Transmit"
DD_EXTENSION | DEBUG | astuyve line " face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed"
DD_EXTENSION | DEBUG | astuyve line "    lo:  304049     606    0    0    0     0          0         0   304049     606    0    0    0     0       0          0"
DD_EXTENSION | DEBUG | astuyve line "vint_runtime: 1333674    1153    0    0    0     0          0         0   507891    1170    0    0    0     0       0          0"
DD_EXTENSION | DEBUG | Platform report for request_id: "972d2681-94c2-46a6-b45d-06da778c0d02" with status: Success and error: "None"
DD_EXTENSION | DEBUG | Could not find data to generate network enhanced metrics