Fix misspelt Versioning in CMakeLists.txt

[mcbarton]

Description

Please include a summary of changes, motivation and context for this PR.

Versioning is misspelt in the main CMakeLists.txt file.

Fixes # (issue)

Type of change

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• Bug fix
• New feature
• Added/removed dependencies
• Required documentation updates

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.54%. Comparing base (ca8c42e) to head (b31209e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #270   +/-   ##
=======================================
  Coverage   80.54%   80.54%           
=======================================
  Files          19       19           
  Lines         956      956           
  Branches       88       88           
=======================================
  Hits          770      770           
  Misses        186      186           

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[vgvassilev]

LGTM!