Bump certificates to v0.29.0

Author: dopey

step-certificates/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 name: step-certificates
-version: 1.28.4
-appVersion: 0.28.4
+version: 1.29.0
+appVersion: 0.29.0
 description: An online certificate authority and related tools for secure automated certificate management, so you can use TLS everywhere.
 keywords:
  - acme