* elastic/master: (33 commits)
  Add searchable snapshot cache folder to NodeEnvironment (elastic#66297)
  [DOCS] Add dynamic runtime fields to docs (elastic#66194)
  Add HDFS searchable snapshot integration (elastic#66185)
  Support canceling cross-clusters search requests (elastic#66206)
  Mute testCacheSurviveRestart (elastic#66289)
  Fix cat tasks api params in spec and handler (elastic#66272)
  Snapshot of a searchable snapshot should be empty (elastic#66162)
  [ML] DFA _explain API should not fail when none field is included (elastic#66281)
  Add action to decommission legacy monitoring cluster alerts (elastic#64373)
  move rollup_index param out of RollupActionConfig (elastic#66139)
  Improve FieldFetcher retrieval of fields (elastic#66160)
  Remove unsed fields in `RestAnalyzeAction` (elastic#66215)
  Simplify searchable snapshot CacheKey (elastic#66263)
  Autoscaling remove feature flags (elastic#65973)
  Improve searchable snapshot mount time (elastic#66198)
  [ML] Report cause when datafeed extraction encounters error (elastic#66167)
  Remove suggest reference in some API specs (elastic#66180)
  Fix warning when installing a plugin for different ESversion (elastic#66146)
  [ML] make `xpack.ml.max_ml_node_size` and `xpack.ml.use_auto_machine_memory_percent` dynamically settable (elastic#66132)
  [DOCS] Add `require_alias` to Bulk API (elastic#66259)
  ...