Fix IndexRecoveryIT#testSourceThrottling

Ensure that the target node has a high enough recovery max bytes
per second to avoid any accidental throttling.

Closes elastic#110026

server/src/internalClusterTest/java/org/elasticsearch/indices/recovery/IndexRecoveryIT.java

@@ -545,7 +545,10 @@ public void testRerouteRecovery() throws Exception {
             .size();
 
         logger.info("--> start node B");
-        final String nodeB = internalCluster().startNode();
+        final String nodeB = internalCluster().startNode(
+            // Ensure that the target node has a high enough recovery max bytes per second to avoid any throttling
+            Settings.builder().put(RecoverySettings.INDICES_RECOVERY_MAX_BYTES_PER_SEC_SETTING.getKey(), "200mb")
+        );
 
         ensureGreen();