Fix issue 14708 tinyint

[ruudboon]

Hello!

• Type: bug fix
• Link to issue: Phalcon 4 issue with TINYINT(1) #14708

In raising this pull request, I confirm the following:

• 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
• I have updated the relevant CHANGELOG
• I have created a PR for the documentation about this change

Small description of change:
Fixed that tinyint is handled as int instead of boolean under MySQL

[codecov]

Codecov Report

Merging #14709 into 4.0.x will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##            4.0.x   #14709      +/-   ##
==========================================
+ Coverage   67.96%   67.97%   +<.01%     
==========================================
  Files         483      483              
  Lines      111483   111461      -22     
==========================================
- Hits        75774    75761      -13     
+ Misses      35709    35700       -9