Merge pull request #7738 from hashicorp/fix_7727

prevent nil pointer dereference by defining IsUserAuthority. This occ…

provisioner/ansible/provisioner.go

@@ -241,6 +241,7 @@ func (p *Provisioner) Provision(ctx context.Context, ui packer.Ui, comm packer.C
 
 			return nil, nil
 		},
+		IsUserAuthority: func(k ssh.PublicKey) bool { return true },
 	}
 
 	config := &ssh.ServerConfig{

provisioner/inspec/provisioner.go

@@ -234,6 +234,7 @@ func (p *Provisioner) Provision(ctx context.Context, ui packer.Ui, comm packer.C
 
 			return nil, nil
 		},
+		IsUserAuthority: func(k ssh.PublicKey) bool { return true },
 	}
 
 	config := &ssh.ServerConfig{