ubuntu_fan_smoke_test, ubuntu_lxc and ubuntu_lxc test failures on b/linux-gcp-5.4 on c3a-standard instance

[Nathan Sweetman]

Bionic linux-gcp-5.4 fails on new c3a-standard instance due to connection issues, see below.

Running './ubuntu_fan_smoke_test.sh 172.17.0.0/16'
[stdout] Testing Fan Networking (pre-0.13.0 API)
[stdout] docker pull --platform linux/arm64 ubuntu: PASSED
[stderr] Illegal instruction (core dumped)
[stdout] enable disable fan test: PASSED
[stderr] Illegal instruction (core dumped)
[stdout] fanctl show test: PASSED
[stderr] Illegal instruction (core dumped)
[stdout] fanctl check bridge config test: PASSED
[stderr] W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/jammy/InRelease Connection failed [IP: 185.125.190.39 80]
[stderr] W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/jammy-updates/InRelease Connection failed [IP: 185.125.190.39 80]
[stderr] W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/jammy-backports/InRelease Connection failed [IP: 185.125.190.39 80]
[stderr] W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/jammy-security/InRelease Connection failed [IP: 185.125.190.36 80]
[stderr] W: Some index files failed to download. They have been ignored, or old ones used instead.
[stderr] E: Unable to locate package iputils-ping
[stdout] fanatic docker test(--dns=169.254.169.254): FAILED: (docker run returned 100)
[stderr] Illegal instruction (core dumped)

[Manuel Diewald (diewald)]

Found on Jammy linux 5.15.0-97.107, security cycle s2024.01.08.

[Manuel Diewald (diewald)]

Found on Mantic linux 6.5.0-21.21, security cycle s2024.01.08.