BMO optional pull is broken

[tuminoid]

Which jobs are failing?

BMO optional pull Prow test.

[2025-05-26T05:04:57.441Z] go: downloading go.opentelemetry.io/otel/sdk v1.29.0
[2025-05-26T05:05:45.938Z] libvirt.org/go/libvirt: exec: "pkg-config": executable file not found in $PATH
[2025-05-26T05:05:45.938Z] make: *** [Makefile:208: build-vbmctl] Error 1

Which tests are failing?

BMO optional pull Prow test.

Since when has it been failing?

No idea, its optional test.

Jenkins link

https://jenkins.nordix.org/blue/organizations/jenkins/metal3-bmo-e2e-test-optional-pull/detail/metal3-bmo-e2e-test-optional-pull/7/pipeline

Reason for failure (if possible)

pkgconfig is missing, likely something changed in the runner image.

Anything else we need to know?

/cc @lentzi90

Label(s) to be applied

/kind failing-test

[lentzi90]

/triage accepted
Thanks for creating the issue. Our jenkins workers are missing some packages that the github runners have. (When we trigger the optional tests manually on a PR they run in jenkins. The periodic tests and automatically triggered tests run in github runners.
We need to fix #2456 first though. Otherwise there is no way to get them green.,