* adapt retryCallCluster for new ES client

* review comments

* retry on 408 ResponseError

* remove legacy retry functions

* use Migrator Es client in SO migration

* update migration tests

* improve ES typings and mocks

* migrate decorate ES errors

* add repository es client

* use new es client in so repository

* update repository tests

* fix migrator integration tests

* declare _seq_no & _primary_term on get response. _source expect to be a string

* make _sourceIncludes and refresh compatible with the client

* add test for repository_es_client

* move ApiResponse to es client mocks

* TEMP: handle wait_for as true for deleteByNamespace

* add tests for migration_es_client

* TEMP: skip test for deleteByNamespace refresh

* pass ignore as transport option in mget

* log both es client and response errors

* fix update method test failures

* update deleteByNamespace refresh settings

es doesn't support 'refresh: wait_for' for `updateByQuery` endpoint

* update repository tests. we do not allow customising wait_for

* do not delegate retry logic to es client

* fix type errors after master merged

* fix repository tests

* fix security solutions code

SO doesn't throw Error with status code anymore. Always use SO error helpers

* switch error conditions to use SO error helpers

* cleanup

* address comments about mocks

* use isResponseError helper

* address comments

* fix type errors

Co-authored-by: pgayvallet <pierre.gayvallet@elastic.co>