Bump github.com/hashicorp/terraform-plugin-mux from 0.20.0 to 0.21.0#1327

dependabot[bot] wants to merge 1 commit intomainelastic/terraform-provider-elasticstack:mainfrom

dependabot/go_modules/github.com/hashicorp/terraform-plugin-mux-0.21.0elastic/terraform-provider-elasticstack:dependabot/go_modules/github.com/hashicorp/terraform-plugin-mux-0.21.0Copy head branch name to clipboard