Moved to new codegen for client sdk generation

[gquadrati]

Moved to new codegen for client sdk generation

[pagopa-github-bot]

	Warnings
⚠️	Please include a Pivotal story at the beginning of the PR title (see below).

Example of PR titles that include pivotal stories:

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[codecov]

Codecov Report

Merging #129 (0056f4b) into master (58fda03) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #129   +/-   ##
=======================================
  Coverage   84.20%   84.20%           
=======================================
  Files          49       49           
  Lines        1665     1665           
  Branches      133      133           
=======================================
  Hits         1402     1402           
  Misses        258      258           
  Partials        5        5           

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[balanza]

LGTM