update go version (#34)

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
         name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18
+          go-version: 1.20
       -
         name: Import GPG key
         id: import_gpg

Readme.md

@@ -13,7 +13,7 @@ Requirements
 ------------
 
 -	[Terraform](https://www.terraform.io/downloads.html) 0.13.x +
--	[Go](https://golang.org/doc/install) 1.18.x (to build the provider plugin)
+-	[Go](https://golang.org/doc/install) 1.20.x (to build the provider plugin)
 
 Using the provider
 ----------------------
@@ -32,7 +32,7 @@ Compatibility with Netris-Controller
 
 Manual Build and Install
 ------------
-If you wish to work on the provider, you'll first need [Go](http://www.golang.org) installed on your machine (version 1.18+ is *required*).
+If you wish to work on the provider, you'll first need [Go](http://www.golang.org) installed on your machine (version 1.20+ is *required*).
 
 To compile the provider, make sure that `OS_ARCH` in the Makefile is correct and run `make install`. This will build the provider and put the provider binary in the `~/.terraform.d/plugins/` directory.
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/netrisai/terraform-provider-netris
 
-go 1.18
+go 1.20
 
 require (
 	github.com/hashicorp/terraform-plugin-sdk v1.17.2