Refactor path handling in copyToTemp filter logic

Replaced manual path manipulation with `path.relative` for cleaner and more reliable relative path creation. This improves code readability and reduces the risk of potential errors.

Author: cod1k

dev-packages/e2e-tests/lib/copyToTemp.ts

@@ -2,7 +2,7 @@
 import { existsSync, readFileSync, writeFileSync } from 'fs';
 import { cp } from 'fs/promises';
 import ignore from 'ignore';
-import { dirname, join } from 'path';
+import { dirname, join, relative } from 'path';
 
 export async function copyToTemp(originalPath: string, tmpDirPath: string): Promise<void> {
   // copy files to tmp dir
@@ -22,9 +22,9 @@ export async function copyToTemp(originalPath: string, tmpDirPath: string): Prom
   await cp(originalPath, tmpDirPath, {
     recursive: true,
     filter: src => {
-      const relative = src.replace(originalPath, '').replace(/^\//, '');
-      if(!relative) return true;
-      return !ig.ignores(relative);
+      const relPath = relative(originalPath, src);
+      if (!relPath) return true;
+      return !ig.ignores(relPath);
     },
   });