fix(bitswap:testnet) Provide takes ctx

exchange/bitswap/testnet/routing.go

@@ -92,6 +92,6 @@ func (a *routingClient) FindProvidersAsync(ctx context.Context, k u.Key, max int
 	return out
 }
 
-func (a *routingClient) Provide(key u.Key) error {
+func (a *routingClient) Provide(_ context.Context, key u.Key) error {
 	return a.hashTable.Announce(a.peer, key)
 }

exchange/bitswap/testnet/routing_test.go

@@ -53,7 +53,7 @@ func TestClientFindProviders(t *testing.T) {
 	rs := VirtualRoutingServer()
 	client := rs.Client(peer)
 	k := u.Key("hello")
-	err := client.Provide(k)
+	err := client.Provide(context.Background(), k)
 	if err != nil {
 		t.Fatal(err)
 	}