fix(git-node): simplify vulnerabilities.json creation, add missing EOL (#1044)

Author: aduh95

lib/prepare_security.js

@@ -203,23 +203,19 @@ export default class PrepareSecurityRelease extends SecurityRelease {
   }
 
   async createVulnerabilitiesJSON(reports, dependencies, releaseDate) {
-    this.cli.separator('Creating vulnerabilities.json...');
-    const file = JSON.stringify({
+    this.cli.startSpinner('Creating vulnerabilities.json...');
+    const fileContent = JSON.stringify({
       releaseDate,
       reports,
       dependencies
-    }, null, 2);
+    }, null, 2) + '\n';
 
-    const folderPath = path.join(process.cwd(), NEXT_SECURITY_RELEASE_FOLDER);
-    try {
-      fs.accessSync(folderPath);
-    } catch (error) {
-      fs.mkdirSync(folderPath, { recursive: true });
-    }
+    const folderPath = path.resolve(NEXT_SECURITY_RELEASE_FOLDER);
+    await fs.promises.mkdir(folderPath, { recursive: true });
 
     const fullPath = path.join(folderPath, 'vulnerabilities.json');
-    fs.writeFileSync(fullPath, file);
-    this.cli.ok(`Created ${fullPath} `);
+    await fs.promises.writeFile(fullPath, fileContent);
+    this.cli.stopSpinner(`Created ${fullPath}`);
 
     return fullPath;
   }