fix depguard v2 config

.golangci.yml

@@ -53,8 +53,38 @@ linters-settings:
             recommendations:
               - google.golang.org/protobuf
   depguard:
-    list-type: denylist
-    include-go-root: true
+    rules:
+      main:
+        # List of file globs that will match this list of settings to compare against.
+        # Default: $all
+        files:
+          - $all
+        # List of allowed packages.
+        allow:
+          - $gostd
+          - github.com/BurntSushi/toml
+          - github.com/Masterminds/sprig/v3
+          - github.com/davecgh/go-spew/spew
+          - github.com/hashicorp/consul-template
+          - github.com/hashicorp/consul/api
+          - github.com/hashicorp/consul/sdk/testutil
+          - github.com/hashicorp/go-gatedio
+          - github.com/hashicorp/go-hclog
+          - github.com/hashicorp/go-multierror
+          - github.com/hashicorp/go-rootcerts
+          - github.com/hashicorp/go-sockaddr/template
+          - github.com/hashicorp/go-syslog
+          - github.com/hashicorp/hcl
+          - github.com/hashicorp/logutils
+          - github.com/hashicorp/nomad/api
+          - github.com/hashicorp/vault/api
+          - github.com/imdario/mergo
+          - github.com/mitchellh/go-homedir
+          - github.com/mitchellh/hashstructure
+          - github.com/mitchellh/mapstructure
+          - github.com/pkg/errors
+          - github.com/stretchr/testify/assert
+          - github.com/stretchr/testify/require
 
 run:
   timeout: 10m