Update go-github version

Signed-off-by: Timo Sand <timo.sand@f-secure.com>

Author: deiga

github/resource_github_repository_pages.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/google/go-github/v82/github"
+	"github.com/google/go-github/v83/github"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/customdiff"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"