Merge branch '5.4' into 6.0

* 5.4:
  Update ComposerPlugin.php
  [Notifier] [OvhCloud] handle invalid receiver
  [Cache] fix collecting cache stats when nesting computations
  [VarDumper] Fix JS to expand / collapse
  [Tests] Remove `$this` occurrences in future static data providers

Internal/ComposerPlugin.php

@@ -58,7 +58,7 @@ public function uninstall(Composer $composer, IOInterface $io): void
 
     public function updateAutoloadFile(): void
     {
-        $vendorDir = $this->composer->getConfig()->get('vendor-dir');
+        $vendorDir = realpath($this->composer->getConfig()->get('vendor-dir'));
 
         if (!is_file($autoloadFile = $vendorDir.'/autoload.php')
             || false === $extra = $this->composer->getPackage()->getExtra()['runtime'] ?? []