Use a warning icon for job allowed to failed in scheduled pipelines reports

What does this MR do and why?

For job allowed to fail we want to display a warning icon instead of the failure one. As it's not a real status in gitlab ci api we need to check the status of the allow_failure parameter if it exist

Related reference(s)

close #1627 (closed)

Test coverage

Local test

Nightly - CAPO rke2

name	2024-09-13T00:30 ❌
capo‑rke2‑oci‑ubuntu	unknown runtime ⏩ (no pipeline info)
capo‑rke2‑ubuntu	131min ✔ deploy‑management‑cluster: ✔ deploy‑workload‑cluster: ✔ tests: ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ⚠️ ✔ ✔ update‑management‑cluster: ✔ update‑workload‑cluster: ✔ delete‑workload‑cluster: ✔

Nightly - CAPO variants

name	2024-09-13T01:30 ❌
capo‑fip‑kubeadm‑oci‑ubuntu	unknown runtime ⏩ (no pipeline info)
capo‑misc‑rke2‑units‑ubuntu	unknown runtime ⏩ (no pipeline info)