feat: update whitelist task for multiple addresses

[smartcontracts]

Description
Modifies the whitelist script to add support for whitelisting multiple addresses. Also adds support for adding or removing addresses from the whitelist instead of just adding.

Metadata

• Fixes ENG-1647

[changeset-bot]

⚠️ No Changeset found

Latest commit: 5d0d7ec

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[codecov-commenter]

Codecov Report

Merging #1851 (5d0d7ec) into develop (b9ee2d7) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1851   +/-   ##
========================================
  Coverage    71.99%   71.99%           
========================================
  Files           70       70           
  Lines         2321     2321           
  Branches       346      346           
========================================
  Hits          1671     1671           
  Misses         650      650           

Flag	Coverage Δ
batch-submitter	62.07% <ø> (ø)
contracts	87.96% <ø> (ø)
core-utils	57.50% <ø> (ø)
data-transport-layer	38.64% <ø> (ø)
message-relayer	70.86% <ø> (ø)

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[smartcontracts]

Doesn't impact the build, shouldn't need a changeset.

[tynes]

Looks good to me but untested. Looking to @K-Ho to verify that it works. Would it be helpful to log the tx hashes at the end?