Upgrade phpstan to v2

src/StaticPHP/Artifact/ArtifactDownloader.php

@@ -312,7 +312,7 @@ class ArtifactDownloader
                 FileSystem::createDir(DOWNLOAD_PATH);
             }
             logger()->info('Downloading' . implode(', ', array_map(fn ($x) => " '{$x->getName()}'", $this->artifacts)) . " with concurrency {$this->parallel} ...");
-            // Download artifacts parallely
+            // Download artifacts parallelly
             if ($this->parallel > 1) {
                 $this->downloadWithConcurrency();
             } else {

src/StaticPHP/Artifact/ArtifactExtractor.php

@@ -247,6 +247,7 @@ class ArtifactExtractor
         $artifact->emitAfterBinaryExtract($target_path, $platform);
         logger()->debug("Emitted after-binary-extract hooks for [{$name}]");
 
+        /* @phpstan-ignore-next-line */
         if ($hash !== null && $cache_info['cache_type'] !== 'file') {
             FileSystem::writeFile("{$target_path}/.spc-hash", $hash);
         }