avoid waiting on long timeouts for shorter program runtime

Avoid waiting on long timeouts by moving from default timeout of 30
seconds to a custom timeout of 5 seconds.

main.go

@@ -8,6 +8,7 @@ import (
 	"sort"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/hashicorp/go-version"
 	"github.com/matrix-org/gomatrixserverlib/fclient"
@@ -256,6 +257,7 @@ func main() {
 	token := os.Getenv("MATRIX_TOKEN")
 	room := os.Getenv("MATRIX_ROOM")
 	verbose := false
+	timeoutSeconds := 5
 
 	client, err := mautrix.NewClient(
 		homeserver,
@@ -267,6 +269,7 @@ func main() {
 	}
 	federationClient := fclient.NewClient(
 		fclient.WithWellKnownSRVLookups(true),
+		fclient.WithTimeout(time.Second*time.Duration(timeoutSeconds)),
 	)
 
 	joinedMembers, err := client.JoinedMembers(context.Background(), id.RoomID(room))