update xz lib

Author: dmacvicar

go.mod

@@ -15,6 +15,7 @@ require (
 	github.com/pborman/uuid v1.2.0 // indirect
 	github.com/stretchr/testify v1.7.0
 	github.com/terraform-providers/terraform-provider-ignition v1.2.1
+	github.com/ulikunitz/xz v0.5.8 // indirect
 	golang.org/x/crypto v0.0.0-20191202143827-86a70503ff7e
 	golang.org/x/lint v0.0.0-20200302205851-738671d3881b
 	golang.org/x/sys v0.0.0-20210514084401-e8d321eab015 // indirect

go.sum

@@ -246,8 +246,9 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/terraform-providers/terraform-provider-ignition v1.2.1 h1:dlRZGcokysc9Z2gTVm+neSghAMv9/2WA/pYiGZ6JHCg=
 github.com/terraform-providers/terraform-provider-ignition v1.2.1/go.mod h1:tUlGVBhkz+z79iffnt7vKISS199MdPd85+l6SNpoS/s=
 github.com/ulikunitz/xz v0.5.5/go.mod h1:2bypXElzHzzJZwzH67Y6wb67pO62Rzfn7BSiF4ABRW8=
-github.com/ulikunitz/xz v0.5.6 h1:jGHAfXawEGZQ3blwU5wnWKQJvAraT7Ftq9EXjnXYgt8=
 github.com/ulikunitz/xz v0.5.6/go.mod h1:2bypXElzHzzJZwzH67Y6wb67pO62Rzfn7BSiF4ABRW8=
+github.com/ulikunitz/xz v0.5.8 h1:ERv8V6GKqVi23rgu5cj9pVfVzJbOqAY2Ntl88O6c2nQ=
+github.com/ulikunitz/xz v0.5.8/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 github.com/vincent-petithory/dataurl v0.0.0-20160330182126-9a301d65acbb h1:lyL3z7vYwTWXf4/bI+A01+cCSnfhKIBhy+SQ46Z/ml8=
 github.com/vincent-petithory/dataurl v0.0.0-20160330182126-9a301d65acbb/go.mod h1:FHafX5vmDzyP+1CQATJn7WFKc9CvnvxyvZy6I1MrG/U=
 github.com/vmihailenco/msgpack v3.3.3+incompatible/go.mod h1:fy3FlTQTDXWkZ7Bh6AcGMlsjHatGryHQYUTf1ShIgkk=