Bump sharp and @appium/support in /tests

Bumps [sharp](https://github.com/lovell/sharp) and [@appium/support](https://github.com/appium/appium/tree/HEAD/packages/support). These dependencies needed to be updated together.

Updates `sharp` from 0.32.1 to 0.32.6
- [Release notes](https://github.com/lovell/sharp/releases)
- [Changelog](https://github.com/lovell/sharp/blob/main/docs/changelog.md)
- [Commits](lovell/sharp@v0.32.1...v0.32.6)

Updates `@appium/support` from 4.0.1 to 4.1.9
- [Release notes](https://github.com/appium/appium/releases)
- [Changelog](https://github.com/appium/appium/blob/master/packages/support/CHANGELOG.md)
- [Commits](https://github.com/appium/appium/commits/@appium/[email protected]/packages/support)

---
updated-dependencies:
- dependency-name: sharp
  dependency-type: indirect
- dependency-name: "@appium/support"
  dependency-type: indirect
...

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