Bug Fix: Ensure that we return pipeline connection to pool
What's Changed
- Upgrade requirements by @brainix in #447
- Loosen CachedOrderedDict._misses type annotation by @brainix in #448
- Upgrade Python to 3.9.7 by @brainix in #449
- Ensure that we return pipeline connection to pool by @brainix in #450
Full Changelog: v1.3.4...v1.3.5