monitoring: upgrade kube-prometheus-stack

This also adds support for Ceph monitoring + alerts

Sem-Ver: feature
Change-Id: I01a3ceab040b5d8c4dfa33c423f4349c999fb88f
diff --git a/.ansible-lint b/.ansible-lint
new file mode 100644
index 0000000..9b58a7d
--- /dev/null
+++ b/.ansible-lint
@@ -0,0 +1,3 @@
+---
+exclude_paths:
+  - roles/kube_prometheus_stack/files/
\ No newline at end of file