Retry on generating unique identifiers with MongoDB

[quaff]

This commit will mitigate write conflict:

org.springframework.dao.DataIntegrityViolationException: Command failed with error 112 (WriteConflict): 'Caused by :: Write conflict during plan execution and yielding is disabled. :: Please retry your operation or multi-document transaction.' on server xxx.mongodb.net:1026. The full response is {"errorLabels": ["TransientTransactionError"], "ok": 0.0, "errmsg": "Caused by :: Write conflict during plan execution and yielding is disabled. :: Please retry your operation or multi-document transaction.", "code": 112, "codeName": "WriteConflict", "$clusterTime": {"clusterTime": {"$timestamp": {"t": 1755758536, "i": 4}}, "signature": {"hash": {"$binary": {"base64": "xxx=", "subType": "00"}}, "keyId": xxx}}, "operationTime": {"$timestamp": {"t": 1755758536, "i": 4}}}
    at org.springframework.data.mongodb.core.MongoExceptionTranslator.doTranslateException(MongoExceptionTranslator.java:141) ~[spring-data-mongodb-4.5.0.jar:4.5.0]
    at org.springframework.data.mongodb.core.MongoExceptionTranslator.translateExceptionIfPossible(MongoExceptionTranslator.java:74) ~[spring-data-mongodb-4.5.0.jar:4.5.0]
    at org.springframework.data.mongodb.core.MongoTemplate.potentiallyConvertRuntimeException(MongoTemplate.java:3033) ~[spring-data-mongodb-4.5.0.jar:4.5.0]
    at org.springframework.data.mongodb.core.MongoTemplate.execute(MongoTemplate.java:609) ~[spring-data-mongodb-4.5.0.jar:4.5.0]
    at org.springframework.batch.core.repository.dao.MongoSequenceIncrementer.nextLongValue(MongoSequenceIncrementer.java:47) ~[spring-batch-core-5.2.2.jar:5.2.2]
    at org.springframework.batch.core.repository.dao.MongoJobInstanceDao.createJobInstance(MongoJobInstanceDao.java:80) ~[spring-batch-core-5.2.2.jar:5.2.2]

Closes GH-4960