fix(test): reserve mini ports on all interfaces; bound risingwave cleanup shell (#9545)

The 127.0.0.1-only reservation in AllocateMiniPorts/AllocatePortSet let
another process hold the gRPC port on a different interface, so weed
mini's isPortAvailable check failed and it shifted master.grpc. weed
shell -master=<HTTP> still derives grpc as HTTP+10000 and dialed the
unused port, hanging until the 30s context deadline killed it. Bind the
reservation listeners on :port to match mini's check.

Also bound listFilerContents in catalog_risingwave with a 30s
exec.CommandContext so a hung weed shell during failure-cleanup can't
burn the 20-minute test budget.

test/s3tables/catalog_risingwave/setup_test.go

@@ -411,7 +411,12 @@ func createIcebergTable(t *testing.T, env *TestEnvironment, bucketName, namespac
 func listFilerContents(t *testing.T, env *TestEnvironment, path string) {
 	t.Helper()
 
-	cmd := exec.Command("weed", "shell",
+	// Bound diagnostic listing so a hung weed shell during cleanup can't
+	// burn the whole 20-minute test timeout.
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, "weed", "shell",
 		fmt.Sprintf("-master=%s", env.hostMasterAddress()),
 	)
 	cmd.Stdin = strings.NewReader(fmt.Sprintf("fs.ls -R %s\nexit\n", path))