Enable forbidigo for VPA

And forbid the github.com/pkg/errors package

Author: adrianmoisey

vertical-pod-autoscaler/.golangci.yaml

@@ -1,7 +1,14 @@
 linters:
   enable:
+    - forbidigo
     - goimports
 
 linters-settings:
+  forbidigo:
+    forbid:
+      # Forbid use of archived package "github.com/pkg/errors". Context: https://github.com/kubernetes/autoscaler/pull/7845
+      - pkg: github.com/pkg/errors
+    analyze-types: true
+
   goimports:
     local-prefixes: "k8s.io/autoscaler/vertical-pod-autoscaler"