samples: Fixes seconds reported in word time offsets and enables maven checks

Author: gguuss

speech/snippets/src/main/java/com/example/speech/Recognize.java

@@ -229,8 +229,11 @@ public static void asyncRecognizeGcs(String gcsUri) throws Exception, IOExceptio
         System.out.printf("Transcription: %s\n",alternative.getTranscript());
         for (WordInfo wordInfo: alternative.getWordsList()) {
           System.out.println(wordInfo.getWord());
-          System.out.printf("\t%s ns - %s ns\n",
-              wordInfo.getStartTime().getNanos(), wordInfo.getEndTime().getNanos());
+          System.out.printf("\t%s.%s sec - %s.%s sec\n",
+              wordInfo.getStartTime().getSeconds(),
+              wordInfo.getStartTime().getNanos() / 100000000,
+              wordInfo.getEndTime().getSeconds(),
+              wordInfo.getEndTime().getNanos() / 100000000);
         }
       }
     }