Bump tmp and vscode-extension-tester

Bumps [tmp](https://github.com/raszi/node-tmp) to 0.2.5 and updates ancestor dependency [vscode-extension-tester](https://github.com/redhat-developer/vscode-extension-tester/tree/HEAD/packages/extester). These dependencies need to be updated together.


Updates `tmp` from 0.2.1 to 0.2.5
- [Changelog](https://github.com/raszi/node-tmp/blob/master/CHANGELOG.md)
- [Commits](raszi/node-tmp@v0.2.1...v0.2.5)

Updates `vscode-extension-tester` from 4.2.4 to 4.4.1
- [Release notes](https://github.com/redhat-developer/vscode-extension-tester/releases)
- [Commits](https://github.com/redhat-developer/vscode-extension-tester/commits/HEAD/packages/extester)

---
updated-dependencies:
- dependency-name: tmp
  dependency-version: 0.2.5
  dependency-type: indirect
- dependency-name: vscode-extension-tester
  dependency-version: 4.4.1
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]