Bump pyspark from 2.2.1 to 2.2.2 in /frameworks/spark/pyspark_runtime

Bumps [pyspark](https://github.com/apache/spark) from 2.2.1 to 2.2.2.
- [Release notes](https://github.com/apache/spark/releases)
- [Commits](https://github.com/apache/spark/compare/v2.2.1...v2.2.2)

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