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Set dataLocality settings to `best-efforts` for all longhorn storage classes including default one

Mohan Sharma requested to merge Data_Locality_Settings_for_longhornS_Storage_class into main

What does this MR do and why?

This MR sets the dataLocality settings to best-efforts for all longhorn storage class.

By default, longhorn storage class uses dataLocality value as "disabled" which can impact the storage performance.

IMO, we should use dataLocality as best-efforts for longhorn storage class as well to instructs Longhorn to try to keep a replica on the same node as the attached volume.

Reference: https://longhorn.io/docs/1.6.1/high-availability/data-locality/#:~:text=The%20data%20locality%20setting%20is,replica%20as%20having%20data%20locality%20.

cc @satyawanj @asollaud @jparkash2 @NikhilSethi

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Edited by Mohan Sharma

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