Bump tenacity from 5.0.3 to 6.3.0

Bumps [tenacity](https://github.com/jd/tenacity) from 5.0.3 to 6.3.0.
- [Release notes](https://github.com/jd/tenacity/releases)
- [Commits](jd/tenacity@5.0.3...6.3.0)

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

requirements.txt

@@ -1,4 +1,4 @@
 betfairlightweight==2.11.0
-tenacity==5.0.3
+tenacity==6.3.0
 python-json-logger==2.0.1
 requests