Bump tmp from 0.2.1 to 0.2.4 in /test/automation (microsoft#260179)

Bumps [tmp](https://github.com/raszi/node-tmp) from 0.2.1 to 0.2.4.
- [Changelog](https://github.com/raszi/node-tmp/blob/master/CHANGELOG.md)
- [Commits](raszi/node-tmp@v0.2.1...v0.2.4)

---
updated-dependencies:
- dependency-name: tmp
  dependency-version: 0.2.4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

test/automation/package-lock.json

@@ -19,7 +19,7 @@
   },
   "dependencies": {
     "ncp": "^2.0.0",
-    "tmp": "0.2.1",
+    "tmp": "0.2.4",
     "tree-kill": "1.2.2",
     "vscode-uri": "3.0.2"
   },