Bump semver and appium in /example/e2e

Bumps [semver](https://github.com/npm/node-semver) to 7.5.4 and updates ancestor dependency [appium](https://github.com/appium/appium/tree/HEAD/packages/appium). These dependencies need to be updated together.


Updates `semver` from 5.7.1 to 7.5.4
- [Release notes](https://github.com/npm/node-semver/releases)
- [Changelog](https://github.com/npm/node-semver/blob/main/CHANGELOG.md)
- [Commits](npm/node-semver@v5.7.1...v7.5.4)

Updates `appium` from 1.21.0 to 2.1.3
- [Release notes](https://github.com/appium/appium/releases)
- [Changelog](https://github.com/appium/appium/blob/master/packages/appium/CHANGELOG.md)
- [Commits](https://github.com/appium/appium/commits/appium@2.1.3/packages/appium)

---
updated-dependencies:
- dependency-name: semver
  dependency-type: indirect
- dependency-name: appium
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]