cert-manager: 1.17.4 -> 1.18.6

Change-Id: I88cd9d9ef02f81f8fbfa9cce2c164ff093b09b49
diff --git a/charts/cert-manager/Chart.yaml b/charts/cert-manager/Chart.yaml
index 2b59f76..7240504 100644
--- a/charts/cert-manager/Chart.yaml
+++ b/charts/cert-manager/Chart.yaml
@@ -6,7 +6,7 @@
     fingerprint: 1020CF3C033D4F35BAE1C19E1226061C665DF13E
     url: https://cert-manager.io/public-keys/cert-manager-keyring-2021-09-20-1020CF3C033D4F35BAE1C19E1226061C665DF13E.gpg
 apiVersion: v2
-appVersion: v1.17.4
+appVersion: v1.18.6
 description: A Helm chart for cert-manager
 home: https://cert-manager.io
 icon: https://raw.githubusercontent.com/cert-manager/community/4d35a69437d21b76322157e6284be4cd64e6d2b7/logo/logo-small.png
@@ -23,4 +23,4 @@
 name: cert-manager
 sources:
 - https://github.com/cert-manager/cert-manager
-version: v1.17.4
+version: v1.18.6