Hubspot - fix date sync

[kuzmany]

Q	A
Branch?	"features" for all features, enhancements and bug fixes (until 3.3.0 is released)
Bug fix?	yes/no
New feature?	yes/no
Deprecations?	yes/no
BC breaks?	yes/no
Automated tests included?	yes/no
Related user documentation PR URL	mautic/mautic-documentation#...
Related developer documentation PR URL	mautic/developer-documentation#...
Issue(s) addressed	Fixes #...

Description:

This fix issue sync date/datetime from Hubspot to Mautic

Invalid datetime format: 1292 Incorrect datetime value:

Steps to test this PR:

1. Load up this PR
2. Setup Hubspot
3. Setup sync for date/datetime fields, for example
   
4. Try sync: php bin/console mautic:integration:fetchleads --integration=Hubspot --env=dev --fetch-all
5. Without PR sync end with error Invalid datetime format: 1292 Incorrect datetime value: ...

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 22 lines in your changes missing coverage. Please review.

Project coverage is 40.08%. Comparing base (f981ba3) to head (b67c446).
Report is 395 commits behind head on 4.0.

Files with missing lines	Patch %	Lines
...MauticCrmBundle/Integration/HubspotIntegration.php	0.00%	22 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                4.0   #10027      +/-   ##
============================================
- Coverage     40.09%   40.08%   -0.01%     
- Complexity    34470    34476       +6     
============================================
  Files          2053     2053              
  Lines        109049   109065      +16     
============================================
  Hits          43721    43721              
- Misses        65328    65344      +16     

Files with missing lines	Coverage Δ
...MauticCrmBundle/Integration/HubspotIntegration.php	0.00% <0.00%> (ø)

[kuzmany]

Close at the moment. We will push it again once ready to M5