chore: collect network interface statistics

[banjoh]

What this PR does / why we need it:

Collect output of ip -s -s address

Example output

ip -s -s address | grep eth1: -A20
5: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 18:7b:b3:1e:04:60 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.161/24 metric 100 brd 10.0.0.255 scope global dynamic eth1
       valid_lft 41901sec preferred_lft 41901sec
    inet6 fe80::1a7b:b3ff:fe1e:460/64 scope link
       valid_lft forever preferred_lft forever
    RX:  bytes packets errors dropped  missed   mcast
    1371687222  171289      0       0       0       0
    RX errors:  length    crc   frame    fifo overrun
                     0      0       0       0       0
    TX:  bytes packets errors dropped carrier collsns
       7715477  100950      0       0       0       0
    TX errors: aborted   fifo  window heartbt transns
                     0      0       0       0       2

Which issue(s) this PR fixes:

sc-125168

Does this PR require a test?

NONE

Does this PR require a release note?

NONE

Does this PR require documentation?

NONE

[diamonwiggins]

lgtm

[github-actions]

This PR has been released (on staging) and is available for download with a embedded-cluster-smoke-test-staging-app license ID.

Online Installer:

curl "https://staging.replicated.app/embedded/embedded-cluster-smoke-test-staging-app/ci/appver-dev-b59a629" -H "Authorization: $EC_SMOKE_TEST_LICENSE_ID" -o embedded-cluster-smoke-test-staging-app-ci.tgz

Airgap Installer (may take a few minutes before the airgap bundle is built):

curl "https://staging.replicated.app/embedded/embedded-cluster-smoke-test-staging-app/ci-airgap/appver-dev-b59a629?airgap=true" -H "Authorization: $EC_SMOKE_TEST_LICENSE_ID" -o embedded-cluster-smoke-test-staging-app-ci.tgz

Happy debugging!