Update Neo4j to version 3.4.11

With upgrading the neo4j dependency version from 3.4.10 to 3.4.11, four unit-tests are failing.

• DuplicateIdDetectionTest

• JtaRollbackTest

• ResourceLocalRollbackTest

• CompensationSpiTest

Comparing the neo4j git tags to see what has changed among those version numbers, it seems a change was introduced, how building the "cause chain" for the exception query-execution.

The git diff of neo4j version 3.4.10 - 3.4.11 is
https://github.com/neo4j/neo4j/compare/3.4.10...3.4.11

The isolated commits which had changed the behavior

• https://github.com/neo4j/neo4j/commit/25bd77e8524bcd60ae8418f96da46d840e1de5f6

• https://github.com/neo4j/neo4j/commit/aa0ab5548b8279949b7881505208484e81f9fe06

• https://github.com/neo4j/neo4j/commit/a14accb8ef658250de2d7b8cb055cf660b19e57a

To enable compatibility with neo4j 3.4.11 the class EmbeddedNeo4jDialect
has to be modified.

The exception has to get changed from "UniquePropertyValueValidation" to "IndexEntryConflict."