Fix tiny typo in `hcl2_upgrade.mdx` (#10868)
Fix tiny typo in `hcl2_upgrade.mdx` (#10868)


rnaveiras/packer,hashicorp/packer,hashicorp/packer,mitchellh/packer,rnaveiras/packer,rnaveiras/packer,pecigonzalo/packer,rnaveiras/packer,rnaveiras/packer,mitchellh/packer,rnaveiras/packer,hashicorp/packer,pecigonzalo/packer,mitchellh/packer,hashicorp/packer,pecigonzalo/packer,mitchellh/packer,mitchellh/packer,pecigonzalo/packer