Fix linting issues (#1107)

* Set up Go 1.18 in CI

* Pin version of linter; fix linting mistakes

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.17.6'
+          go-version: '1.18'
       - run: make tools
       - run: make lint
       - run: make website-lint

GNUmakefile

@@ -7,7 +7,7 @@ default: build
 
 tools:
 	go install github.com/client9/misspell/cmd/misspell
-	go install github.com/golangci/golangci-lint/cmd/golangci-lint
+	go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.45.2
 
 build: fmtcheck
 	go build ./...

github/data_source_github_organization_teams_test.go

@@ -1,7 +1,6 @@
 package github
 
 import (
-	"fmt"
 	"testing"
 
 	"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
@@ -11,9 +10,9 @@ func TestAccGithubOrganizationTeamsDataSource(t *testing.T) {
 
 	t.Run("queries without error", func(t *testing.T) {
 
-		config := fmt.Sprintf(`
+		config := `
 			data "github_organization_teams" "all" {}
-		`)
+		`
 
 		check := resource.ComposeAggregateTestCheckFunc(
 			resource.TestCheckResourceAttrSet("data.github_organization_teams.all", "teams.0.id"),
@@ -49,11 +48,11 @@ func TestAccGithubOrganizationTeamsDataSource(t *testing.T) {
 
 	t.Run("queries root teams only without error", func(t *testing.T) {
 
-		config := fmt.Sprintf(`
+		config := `
 			data "github_organization_teams" "root_teams" {
 				root_teams_only = true
 			}
-		`)
+		`
 
 		check := resource.ComposeAggregateTestCheckFunc(
 			resource.TestCheckResourceAttrSet("data.github_organization_teams.root_teams", "teams.0.id"),