Update packer-plugin-sdk to use version 0.1

A recent update in the packer-plugin-sdk was a breaking change in Packer's internal marshalling for communicating with plugins : hashicorp/packer-plugin-sdk#31

It could be that this project is not impacted, but updating to v0.1 will make sure it's not the case.
I didn't update the `go.sum` file, this will happen automatically next time you run `go ...` in the project folder.

Author: azr

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/exoscale/egoscale v0.43.1
 	github.com/gofrs/uuid v4.0.0+incompatible // indirect
 	github.com/hashicorp/hcl/v2 v2.8.0
-	github.com/hashicorp/packer-plugin-sdk v0.0.12
+	github.com/hashicorp/packer-plugin-sdk v0.1.0
 	github.com/jarcoal/httpmock v1.0.8 // indirect
 	github.com/rs/xid v1.2.1
 	github.com/stretchr/testify v1.7.0