PRESS10-42 Fix/transients filters

[BrianHenryIE]

Proposed changes

https://jira.newfold.com/browse/PRESS10-42

Type of Change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Video

Checklist

• I have read the CONTRIBUTING doc
• I have viewed my change in a web-browser
• Linting and tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

[GiuseppeArcifa]

All the filters and actions used in the WP Transient have been reproduced in the Transient.php class, I just added few things to make sure PHPCS was applied.

[fralicandro]

is there any reasons why the delete transient method (includes/Helpers/Transient.php:109) has no WP actions?
I think it should be something like:

public static function delete( $key ): bool {
	if ( self::should_use_transients() ) {
		return \delete_transient( $key );
	}

	do_action( "delete_transient_{$key}", $key );

	if ( \delete_option( $key ) ) {
		do_action( 'deleted_transient', $key );

		return true;
	}
	
	return false;
}

[wpscholar]

@GiuseppeArcifa - I left a comment. However, we should also review the comment by @fralicandro regarding the delete function also needing some filters.