Make Migration->printException() overridable

[yus-ham]

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	❌
Fixed issues

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 13.50%. Comparing base (391997a) to head (0b6f09d).
Report is 67 commits behind head on master.

Files with missing lines	Patch %	Lines
framework/db/Migration.php	0.00%	1 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (391997a) and HEAD (0b6f09d). Click for more details.

HEAD has 5 uploads less than BASE

Flag	BASE (391997a)	HEAD (0b6f09d)
	6	1

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #20163      +/-   ##
============================================
- Coverage     18.65%   13.50%   -5.16%     
+ Complexity    11379    11378       -1     
============================================
  Files           430      430              
  Lines         37071    37066       -5     
============================================
- Hits           6915     5004    -1911     
- Misses        30156    32062    +1906     

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[yus-ham]

@bizley I just want to not to print stack traces in console