Exclude Python 3.6 from tests

Bump version 0.5.1 -> 0.5.2

Use Ubuntu 22.04 for workflow jobs.

Merge pull request #28 from Popkornium18/export_sqids_class

Export Sqids from sqids module

changelog + version bump

Merge pull request #25 from aliwo/main

Receive Sequence of int in encode()

changelog + version bump

Merge pull request #23 from kurtmckee/optimize-code-paths

Make instantiation fast when using the default alphabet and blocklist

Don't track coverage in the generated roundtrip test conditional

Add a test to ensure short blocklist words are ignored

Add a basic performance measurement script

Add a changelog entry