Added experimental support for HIMPORT bulk hash import feature (#1712)

* Added support for HIMPORT bulk hash import feature

* Fixed pre-server execution registry miutating, added pre-loaded registry feature

* Refactored retry logic to use existing configuration

* Marked feature as experimental

* Remvoed non-ASCII chars

* Ensure IteratorAggregator interface is enforced

* Fixed bug with updateCachableException adds duplicate entries

* Added explicit reconnect for Relay tests

* Testing with custom image

* Removed redundant comment

* Fixed exception handling

* Removed non-ASCII char

* Fixed merged conflict bugs

.github/workflows/tests.yml

@@ -46,7 +46,7 @@ jobs:
         run: |
           # Mapping of original redis versions to client test containers
           declare -A redis_clients_version_mapping=(
-            ["8.10"]="8.10-rc2"
+            ["8.10"]="custom-30445126297-debian"
             ["8.8"]="8.8.0"
             ["8.6"]="8.6.1"
             ["8.4"]="8.4.0"