CI: install libnl

Change-Id: Ic08a8bab4fa767da8618c369efb7ff06ef606f38
diff --git a/ci/pre.yaml b/ci/pre.yaml
index 9efd046..5ed4273 100644
--- a/ci/pre.yaml
+++ b/ci/pre.yaml
@@ -4,3 +4,9 @@
       shell:
         cmd: dnf -y builddep systemd
       become: true
+
+    - name: install libnl
+      package:
+        name: libnl3-devel
+        state: present
+      become: true