[COMPLIANCE] Update MPL 2.0 LICENSE (#12777)
[COMPLIANCE] Update MPL 2.0 LICENSE (#12777)

Co-authored-by: hashicorp-copywrite[bot] <1505422b2465e9a84f6fdfaa161078890c593f06@hashicorp.com>
hashicorp/terraform-provider-google,hashicorp/terraform-provider-google,hashicorp/terraform-provider-google,hashicorp/terraform-provider-google