Bump submodules/vipr from 852fde0 to ee9d4cc

Bumps [submodules/vipr](https://github.com/microsoft/vipr) from `852fde0` to `ee9d4cc`.
- [Release notes](https://github.com/microsoft/vipr/releases)
- [Commits](microsoft/Vipr@852fde0...ee9d4cc)

---
updated-dependencies:
- dependency-name: submodules/vipr
  dependency-type: direct:production
...

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

Author: dependabot[bot]