update string2int to 1.2.1

Author: medcl

elasticsearch/plugins/analysis-string2int/elasticsearch-analysis-string2int-1.2.0.jar renamed to elasticsearch/plugins/analysis-string2int/elasticsearch-analysis-string2int-1.2.1.jar

@@ -11,7 +11,7 @@ medcl/elasticsearch-analysis-mmseg/1.2.0
 medcl/elasticsearch-analysis-pinyin-1.2.1
 medcl/elasticsearch-analysis-paoding/1.2.0
 medcl/elasticsearch-analysis-stconvert/1.2.1
-medcl/elasticsearch-analysis-string2int/1.2.0
+medcl/elasticsearch-analysis-string2int/1.2.1
 laigood/elasticsearch-analysis-ansj/1.2.0