Improve check on loading cached file if the file not found

[lubosdz]

What steps will reproduce the problem?

Attempt to load from filecache if cached file does not exist throws in debug mode error (although supressed).

What is the expected result?

PHP should detect whether file exists via is_file($path) rather than via supressed errors @. Supressed errors still show errors & warnings in debug mode and is generally not preferred way to handle missing files.

Additional info

Q	A
Yii version	2.0.47
PHP version	8.0+
Operating system	Win10

PR - #19773