update to use non deprecated jbehave api (via #395)

Author: valfirst

allure-jbehave/src/main/java/io/qameta/allure/jbehave/AllureJbehave.java

@@ -134,7 +134,7 @@ public void beforeExamples(final List<String> steps, final ExamplesTable table)
     }
 
     @Override
-    public void example(final Map<String, String> tableRow) {
+    public void example(final Map<String, String> tableRow, final int exampleIndex) {
         if (isGivenStory()) {
             return;
         }

allure-jbehave/src/test/java/io/qameta/allure/jbehave/LoggingReporter.java

@@ -73,7 +73,7 @@ public void beforeStep(final String step) {
     }
 
     @Override
-    public void example(final Map<String, String> tableRow) {
+    public void example(final Map<String, String> tableRow, final int exampleIndex) {
         log("example", tableRow);
     }