MDL-83334 core: Remove deprecated constant E_STRICT

One of the error levels PHP previously emitted was E_STRICT, on code
that was not strictly correct to ensure interoperability and forward
compatibility. PHP 7.0 converted the majority of existing E_STRICT
warnings to E_NOTICE, and since PHP 8.0, all E_STRICT notices have
changed to E_NOTICE.

Because all of the E_STRICT notices are upgraded to E_NOTICE since PHP
8.0, PHP 8.4 deprecates the E_STRICT constant.

The E_STRICT constant is deprecated in PHP 8.4. Using the constant
anywhere in PHP code now emits a deprecation notice in PHP 8.4 and
later.

The E_STRICT constant will be removed in PHP 9.0.

PHP core and core extensions since PHP 8.0 and later do not emit
E_STRICT notices at all. It is safe to assume that any PHP applications
that run on PHP 8.0 and later will never encounter E_STRICT notices, and
error reporting and handling can be safely updated to ignore E_STRICT
notices.

See: https://php.watch/versions/8.4/E_STRICT-deprecated

Signed-off-by: Daniel Ziegenberg <[email protected]>

admin/cli/alternative_component_cache.php

@@ -71,7 +71,7 @@ Example:
     exit(0);
 }
 
-error_reporting(E_ALL | E_STRICT);
+error_reporting(E_ALL);
 ini_set('display_errors', 1);
 
 $content = core_component::get_cache_content();