update tests context

internal/ofigi/client_test.go

@@ -2,7 +2,6 @@ package ofigi_test
 
 import (
 	"bytes"
-	"context"
 	"fmt"
 	"io"
 	"net/http"
@@ -112,7 +111,7 @@ func TestOpenFIGI_SecurityTypeByISIN(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			of := ofigi.NewOpenFIGI(tt.client, "")
 
-			got, gotErr := of.SecurityTypeByISIN(context.Background(), tt.isin)
+			got, gotErr := of.SecurityTypeByISIN(t.Context(), tt.isin)
 			if gotErr != nil {
 				if !tt.wantErr {
 					t.Errorf("want success but failed: %v", gotErr)