Bump redis from 2.10.6 to 3.2.1 in /src

Bumps [redis](https://github.com/andymccurdy/redis-py) from 2.10.6 to 3.2.1.
- [Release notes](https://github.com/andymccurdy/redis-py/releases)
- [Changelog](https://github.com/andymccurdy/redis-py/blob/master/CHANGES)
- [Commits](https://github.com/andymccurdy/redis-py/compare/2.10.6...3.2.1)

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

src/requirements-check_rs500.txt

@@ -1 +1 @@
-redis==2.10.6
+redis==3.2.1

src/requirements-rs5002redis.txt

@@ -1,2 +1,2 @@
 hidapi==0.7.99.post21
-redis==2.10.6
+redis==3.2.1