[liveramp] Hotfix: Imports hashing functions with the same syntax as other imports

[nick-Ag]

This PR changes the hashing function import to follow the conventions of other actions-core imports.
The existing import causes this build error when running a deploy: https://github.com/segmentio/action-destinations/actions/runs/12894780920/job/35954227746

Testing

Testing not required as this fix can only be tested in GitHub actions
Include any additional information about the testing you have completed to
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any of the tasks you completed below during your testing.

• Added unit tests for new functionality
• Tested end-to-end using the local server
• [If destination is already live] Tested for backward compatibility of destination. Note: New required fields are a breaking change.
• [Segmenters] Tested in the staging environment
• [Segmenters] [If applicable for this change] Tested for regression with Hadron.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.46%. Comparing base (ba59ef1) to head (d639ebb).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2700   +/-   ##
=======================================
  Coverage   78.46%   78.46%           
=======================================
  Files        1036     1036           
  Lines       18771    18771           
  Branches     3556     3560    +4     
=======================================
  Hits        14729    14729           
  Misses       2844     2844           
  Partials     1198     1198           

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