Upgrade Flink to 1.20.1-csa1.15.2.0 and CDH to 7.3.1.400-100

- Updated csa.version from csa1.14.1.0 to csa1.15.2.0
- Updated flink.version from 1.19.2-csa1.14.1.0 to 1.20.1-csa1.15.2.0
- Updated cdh.version from 7.3.1.300-81 to 7.3.1.400-100
- Verified Avro 1.11.4 compatibility with Flink 1.20.1
- All dependent libraries using CDH version will automatically use new version

Co-authored-by: openhands <openhands@all-hands.dev>

Author: openhands-agent

flink-cyber/pom.xml

@@ -55,11 +55,11 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.8</java.version>
-        <csa.version>csa1.14.1.0</csa.version>
-        <flink.version>1.19.2-${csa.version}</flink.version>
+        <csa.version>csa1.15.2.0</csa.version>
+        <flink.version>1.20.1-${csa.version}</flink.version>
         <cloudera.registry>1.0-${csa.version}</cloudera.registry>
         <flink.hbase.version>2.4</flink.hbase.version>
-        <cdh.version>7.3.1.300-81</cdh.version>
+        <cdh.version>7.3.1.400-100</cdh.version>
         <lombok.version>1.18.22</lombok.version>
         <lombok.plugin.version>1.18.16.0</lombok.plugin.version>
         <guava.version>21.0</guava.version>