[StrContainsRector] also replace multibyte functions fro strpos and strstr

[JohJohan]

No description provided.

[samsonasik]

Let's give it a try, thank you @JohJohan

[samsonasik]

@JohJohan oh, the code then need to change with new code:

rector-src/rules/Php80/Rector/NotIdentical/StrContainsRector.php

Lines 103 to 108 in 5814187

	if ($this->isName($funcCall->name, 'strpos') && ! $this->isIntegerZero($secondArg->value)) {
	$funcCall->args[0] = new Arg($this->nodeFactory->createFuncCall(
	'substr',
	[$funcCall->args[0], $secondArg]
	));
	}

I am going to revert this first, ensure no regression...

[samsonasik]

@JohJohan I am reverting at #6903

[github-actions]

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