fix dirname

Author: mydea

dev-packages/size-limit-gh-action/index.mjs

@@ -1,5 +1,6 @@
 import { promises as fs } from 'node:fs';
 import path from 'node:path';
+import { fileURLToPath } from 'node:url'
 
 import * as artifact from '@actions/artifact';
 import * as core from '@actions/core';
@@ -191,6 +192,7 @@ async function run() {
     const octokit = getOctokit(githubToken);
     const limit = new SizeLimit();
     const artifactClient = artifact.create();
+    const __dirname = path.dirname(fileURLToPath(import.meta.url))
     const resultsFilePath = path.resolve(__dirname, RESULTS_FILE);
 
     // If we have no comparison branch, we just run size limit & store the result as artifact
@@ -215,7 +217,7 @@ async function run() {
       });
       const files = await globber.glob();
 
-      await artifactClient.uploadArtifact(ARTIFACT_NAME, files, __dirname);
+      await artifactClient.uploadArtifact(ARTIFACT_NAME, files, process.env);
 
       return;
     }