feat: Upgrade monitoring stack (#1071)

diff --git a/charts/loki/Makefile b/charts/loki/Makefile
new file mode 100644
index 0000000..4b56414
--- /dev/null
+++ b/charts/loki/Makefile
@@ -0,0 +1,7 @@
+.DEFAULT_GOAL := all
+.PHONY: lint lint-yaml
+
+lint: lint-yaml
+
+lint-yaml:
+	yamllint -c $(CURDIR)/src/.yamllint.yaml $(CURDIR)/src