[FLINK-7133] Exclude optional asm deps from Elasticsearch base module

These ASM dependencies where shaded into the elasticsearch-base module
which where then clashing with our newer (also shaded) ASM dependency.

flink-connectors/flink-connector-elasticsearch-base/pom.xml

@@ -55,6 +55,19 @@ under the License.
  <groupId>org.elasticsearch</groupId>
  <artifactId>elasticsearch</artifactId>
  <version>${elasticsearch.version}</version>
+ <!--
+ FLINK-7133: Excluding all org.ow2.asm from elasticsearch dependencies because
+ 1. from the POV of client they are optional,
+ 2. the version configured by default at the time of writing this comment (1.7.1) depends on asm 4.1
+ and when it is shaded into elasticsearch-base artifact it conflicts with newer shaded versions of asm
+ resulting in errors at the runtime when application is executed locally, e.g. from IDE.
+ -->
+ <exclusions>
+ <exclusion>
+ <groupId>org.ow2.asm</groupId>
+ <artifactId>*</artifactId>
+ </exclusion>
+ </exclusions>
  </dependency>
 
  <!-- test dependencies -->