test: use cilium-builder image in verifier tests
test: use cilium-builder image in verifier tests

Commit dcdbb54797e8 ("update cilium-{runtime,builder}") accidentially
switched the verifier test to use the cilium-runtime image which doesn't
have `make`, leading to test failure. Switch back to the cilium-builder
image.

Fixes: dcdbb54797e8 ("update cilium-{runtime,builder}")
Signed-off-by: Tobias Klauser <9249c549618448e4c699e8032ba6c7f0d7fd4b7f@distanz.ch>

tgraf/cilium,tgraf/cilium,tklauser/cilium,cilium/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,cilium/cilium,tklauser/cilium,michi-covalent/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,tgraf/cilium,michi-covalent/cilium,tklauser/cilium,cilium/cilium,tgraf/cilium,tklauser/cilium