[MINOR] Fix typo,'Kakfa' corrected to 'Kafka' & 'parquest' corrected to 'parquet' (apache#3717)

Author: dongkelun

hudi-common/src/main/java/org/apache/hudi/common/config/ConfigGroups.java

@@ -74,7 +74,7 @@ public static String getDescription(Names names) {
             + "Hudi stats and metrics.";
         break;
       case KAFKA_CONNECT:
-        description = "These set of configs are used for Kakfa Connect Sink Connector for writing Hudi Tables";
+        description = "These set of configs are used for Kafka Connect Sink Connector for writing Hudi Tables";
         break;
       default:
         description = "Please fill in the description for Config Group Name: " + names.name;

hudi-kafka-connect/src/main/java/org/apache/hudi/connect/writers/KafkaConnectConfigs.java

@@ -36,7 +36,7 @@
 @Immutable
 @ConfigClassProperty(name = "Kafka Sink Connect Configurations",
     groupName = ConfigGroups.Names.KAFKA_CONNECT,
-    description = "Configurations for Kakfa Connect Sink Connector for Hudi.")
+    description = "Configurations for Kafka Connect Sink Connector for Hudi.")
 public class KafkaConnectConfigs extends HoodieConfig {
 
   public static final String KAFKA_VALUE_CONVERTER = "value.converter";

hudi-utilities/src/test/java/org/apache/hudi/utilities/functional/TestHoodieDeltaStreamer.java

@@ -1514,8 +1514,8 @@ private void testDeltaStreamerTransitionFromParquetToKafkaSource(boolean autoRes
 
     prepareParquetDFSSource(true, false, "source_uber.avsc", "target_uber.avsc", PROPS_FILENAME_TEST_PARQUET,
         PARQUET_SOURCE_ROOT, false);
-    // delta streamer w/ parquest source
-    String tableBasePath = dfsBasePath + "/test_dfs_to_kakfa" + testNum;
+    // delta streamer w/ parquet source
+    String tableBasePath = dfsBasePath + "/test_dfs_to_kafka" + testNum;
     HoodieDeltaStreamer deltaStreamer = new HoodieDeltaStreamer(
         TestHelpers.makeConfig(tableBasePath, WriteOperationType.INSERT, ParquetDFSSource.class.getName(),
             Collections.EMPTY_LIST, PROPS_FILENAME_TEST_PARQUET, false,