Remove zips used by bwc tests

[bharath-techie]

Description

Remove hardcoded zips used by BWC tests and fetch dynamically instead

Issues Resolved

[https://github.com//issues/132]

Check List

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (main@0a7f805). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head 495c390 differs from pull request most recent head 222314d. Consider uploading reports for the commit 222314d to get more accurate results

@@           Coverage Diff           @@
##             main     #133   +/-   ##
=======================================
  Coverage        ?   83.60%           
  Complexity      ?      557           
=======================================
  Files           ?       61           
  Lines           ?     2050           
  Branches        ?      146           
=======================================
  Hits            ?     1714           
  Misses          ?      230           
  Partials        ?      106           

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