SpringBoot Upgrade to Spring Data 2021.0.0-M2

Comment From: mp911de

Project Dependencies Spring Data 2021.0.0-M2

• Cassandra Driver (com.datastax.oss:java-driver-core): 4.9.0
• Couchbase Client (com.couchbase.client:java-client): 3.1.0
• Elasticsearch (org.elasticsearch.client:elasticsearch-rest-high-level-client): 7.10.2
• Jedis (redis.clients:jedis): 3.3.0
• Lettuce (io.lettuce:lettuce-core): 6.0.2.RELEASE
• MongoDB (org.mongodb:mongodb-driver-core): 4.1.1
• Neo4j Driver (org.neo4j.driver:neo4j-java-driver): 4.1.1
• Spring LDAP (org.springframework.ldap:spring-ldap-core): 2.3.3.RELEASE