chore(deps): update module github.com/prometheus/client_golang to v1.18.0 (#799)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
diff --git a/go.mod b/go.mod
index 673f262..ffc53d6 100644
--- a/go.mod
+++ b/go.mod
@@ -13,7 +13,7 @@
 	github.com/gophercloud/utils v0.0.0-20231010081019-80377eca5d56
 	github.com/nsf/jsondiff v0.0.0-20230430225905-43f6cf3098c1
 	github.com/percona/percona-xtradb-cluster-operator v1.13.0
-	github.com/prometheus/client_golang v1.17.0
+	github.com/prometheus/client_golang v1.18.0
 	github.com/prometheus/common v0.45.0
 	github.com/sirupsen/logrus v1.9.3
 	github.com/spf13/cobra v1.8.0