Update haf submodule to latest develop

Dan Notesteinrequested to merge
update-haf-submodule into develop

Updates HAF submodule from 9abb738e to f4d6b26b.

Includes:

  • Fix initdb temp directory collision in Docker containers
  • Switch data-cache-storage jobs to hive-builder-9
  • Optimize get_block_from_views to eliminate expensive self-join

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