Managed by Terraform: Update dependabot.yml

Author: nywilken

.github/dependabot.yml

@@ -9,3 +9,8 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "daily"
+    allow:
+      - dependency-name: "github.com/hashicorp/packer-plugin-sdk"
+      - dependency-name: "github.com/hashicorp/hcl/v2"
+      - dependency-name: "github.com/zclconf/go-cty"
+