Bump version to 6.4.4

[gaiksaya]

Description

Bump version to 6.4.4 as a follow up of #413

Issues Resolved

List any issues this PR will resolve, e.g. Closes [...].

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.12%. Comparing base (58f7807) to head (1c7ea27).
Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #415   +/-   ##
=========================================
  Coverage     87.12%   87.12%           
  Complexity       31       31           
=========================================
  Files            88       88           
  Lines           233      233           
  Branches         12       12           
=========================================
  Hits            203      203           
  Misses           22       22           
  Partials          8        8           

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