Bump pytz from 2022.2.1 to 2022.6

Bumps pytz from 2022.2.1 to 2022.6.

Commits

• 4ebc28d Bump version numbers to 2022.6 / 2022f
• f1bd81b IANA 2022f
• 5797f88 Squashed 'tz/' changes from c4eb3fcf2..623631d84
• dacb1a1 Upgrade unittest asserts
• d1abcdd Bump GitHub Actions
• 7ff7f35 Add support for Python 3.11
• 1ab3481 Bump version numbers to 2022.5 / 2022e
• 872168c Squashed 'tz/' changes from 0fc8f915a..16bd7a384
• c5900e5 IANA 2022e
• 04b5402 Bump version numbers to 2022.4/2022d
• Additional commits viewable in compare view