rename go module and flush out Earthfile build

provider/shim/shim.go

@@ -6,6 +6,6 @@ import (
 )
 
 // Provider returns a Terraform Plugin Framework provider
-func Provider() func() tfprovider.Provider {
-	return provider.NewIncusProvider("dev")
+func Provider(version string) func() tfprovider.Provider {
+	return provider.NewIncusProvider(version)
 }