Fix error Psalm - Calling empty on a boolean value is almost certainly unintended

[jenovateurs]

Hello team!

I fixed some errors that Psalm found.
And I resolve the problem with empty - Calling empty on a boolean value is almost certainly unintended

• Type: bug fix
• Link to issue:

In raising this pull request, I confirm the following (please check boxes):

• I have read and understood the Contributing Guidelines
• I have checked that another pull request for this purpose does not exist
• I wrote some tests for this PR

Thanks

[codecov]

Codecov Report

Merging #1449 into 4.0.x will increase coverage by 0.11%.
The diff coverage is 0.00%.

@@           Coverage Diff            @@
##           4.0.x   #1449      +/-   ##
========================================
+ Coverage   3.30%   3.42%   +0.11%     
========================================
  Files        111     111              
  Lines       5108    5114       +6     
========================================
+ Hits         169     175       +6     
  Misses      4939    4939              

[jenovateurs]

I don't know why Github CI triggered errors ? In my fork project, there is no issue : https://github.com/les-enovateurs/phalcon-devtools/actions/runs/75916762