Improve Tika processing to to pass phpcs

[carl-alberto]

Tika-Doc-PDF-indexer/includes/class-tika-doc-pdf-indexer-functions.php

Lines 61 to 68 in 3dc1378

	// phpcs:disable -- Process handling by Tika
	$process = proc_open( $command, $descriptorspec, $pipes );
	$file_data = '';
	while ( ! feof( $pipes[1] ) ) {
	$file_data .= fgets( $pipes[1], 1024 );
	}
	fclose( $pipes[1] );
	// phpcs:enable

Tika-Doc-PDF-indexer/includes/class-tika-doc-pdf-indexer-functions.php

Line 62 in 3dc1378

$process = proc_open( $command, $descriptorspec, $pipes );

proc_open() found. PHP system calls are often disabled by server admins.

Tika-Doc-PDF-indexer/includes/class-tika-doc-pdf-indexer-functions.php

Line 67 in 3dc1378

fclose( $pipes[1] );

File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fclose()