Super cache - fix tempnam system directory warning (#38028)

* Create cache directory first

* changelog

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/9662108752

Upstream-Ref: Automattic/jetpack@54de012

CHANGELOG.md

@@ -23,6 +23,7 @@ This is an alpha version! The changes listed here are not final.
 ### Fixed
 - Detect when WP_CACHE is defined with "const" in wp-config.php
 - Super Cache: Align detection of Boost installs with activation of that plugin
+- Super Cache: create the cache directory before creating the config file
 - Super Cache: do not show migration notice if already using Boost Cache
 - Super Cache: fixed a PHP warning when deactivating the plugin.
 - Super Cache: make sure plugins links is an array before using it.

wp-cache.php

@@ -260,9 +260,9 @@ function wpsupercache_activate() {
 	wpsc_init();
 
 	if (
+		! wp_cache_verify_cache_dir() ||
 		! wpsc_check_advanced_cache() ||
-		! wp_cache_verify_config_file() ||
-		! wp_cache_verify_cache_dir()
+		! wp_cache_verify_config_file()
 	) {
 		$text = ob_get_contents();
 		ob_end_clean();