chore(deps): update dependency metallb/metallb to v0.15.2 (#45)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

core/metallb/metallb/kustomization.yaml

@@ -1,3 +1,3 @@
 namespace: metallb-system
 resources:
-  - github.com/metallb/metallb/config/native?ref=v0.14.9
+  - github.com/metallb/metallb/config/native?ref=v0.15.2