test(CallToAction): add tests for component

[DatGreekChick]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (a1e6ae7) to head (ad9b878).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #361   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         2    +1     
  Lines           20        50   +30     
=========================================
+ Hits            20        50   +30     

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[github-actions]

Visit the preview URL for this PR (updated for commit ad9b878):

https://elenicodes--pr361-test-call-to-action-8oi4907u.web.app

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