fix: change poetry download url to new script

[progmatic-99]

Fixes #8477

https://python-poetry.org/docs/master/#installing-with-the-official-installer

[pavnesh-c]

/bin/sh: curl: not found
The command '/bin/sh -c set -eo pipefail; curl -sSL https://install.python-poetry.org | python3 -' returned a non-zero code: 127

[codecov]

Codecov Report

Merging #8478 (3d7797b) into development (9b57118) will not change coverage.
The diff coverage is n/a.

❗ Current head 3d7797b differs from pull request most recent head aee22a2. Consider uploading reports for the commit aee22a2 to get more accurate results

@@             Coverage Diff              @@
##           development    #8478   +/-   ##
============================================
  Coverage        65.55%   65.55%           
============================================
  Files              306      306           
  Lines            15965    15965           
============================================
  Hits             10466    10466           
  Misses            5499     5499           

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