Fix tests according to main PR

[Tigrov]

Related with yiisoft/db#766

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

[what-the-diff]

PR Summary

• Class Import and Method Addition
  A new ColumnInterface class was imported into the CommandTest.php file and a new columnTypes() method was added to CommandProvider.php. This lays the groundwork for more flexible column handling in our database operations.

• Refinements to the testAlterColumn() method
  In CommandTest.php, hard-coded column type in the testAlterColumn() method is now replaced with variable $type input. This allows for more flexible testing as we can now dynamically specify the column type. Additional assertions have been added to verify the database type and the nullable status of the altered data column - these are important checks to ensure our changes are correctly applied.

• Enhancements in QueryBuilderTest.php
  The same ColumnInterface class was also imported into QueryBuilderTest.php and a new testAlterColumn() method was added. This test method accepts a column type argument and performs the necessary column alterations.
  Hard-coded column length was also replaced with the flexible $type argument. This ensures that our test can accommodate various column lengths.

• New testAlterColumnWithConstraints() method
  A new method called testAlterColumnWithConstraints() has been added to QueryBuilderTest.php to test column alterations with constraints. It generates SQL commands for altering column with constraints, contributing to a more robust testing environment.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1be5ddb) 98.56% compared to head (767864d) 98.56%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #281   +/-   ##
=========================================
  Coverage     98.56%   98.56%           
  Complexity      218      218           
=========================================
  Files            15       15           
  Lines           626      626           
=========================================
  Hits            617      617           
  Misses            9        9           

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[Tigrov]

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