ci-health-check.sh: replace hardcoded repos with dynamic GitHub API discovery

Use gh api --paginate to dynamically fetch all non-archived public repos
matching ^headlamp-.+ from the privilegedescalation org. This eliminates
the need to manually update the repo list when new plugins are added.

NOTE: --paginate must come before the endpoint arg, not after --jq.
The previous commit had 'gh api paginate' which is incorrect syntax.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/scripts/ci-health-check.sh

@@ -6,17 +6,17 @@ set -euo pipefail
 
 ORG="privilegedescalation"
 
-PLUGIN_REPOS=(
-  headlamp-polaris-plugin
-  headlamp-rook-plugin
-  headlamp-sealed-secrets-plugin
-  headlamp-intel-gpu-plugin
-  headlamp-tns-csi-plugin
-  headlamp-kube-vip-plugin
-  headlamp-argocd-plugin
-  headlamp-plugin-template
+mapfile -t PLUGIN_REPOS < <(
+  gh api --paginate "orgs/${ORG}/repos" \
+    --jq '.[] | select(.archived == false and .visibility == "public") | .name' \
+    2>/dev/null | grep -E '^headlamp-.+' | sort
 )
 
+if [ ${#PLUGIN_REPOS[@]} -eq 0 ]; then
+  echo "ERROR: No repos discovered for ${ORG}" >&2
+  exit 1
+fi
+
 echo "=== CI/CD Health Check — $(date -u '+%Y-%m-%d %H:%M UTC') ==="
 echo ""