`check_telegram_requirements()` re-imports python-telegram-bot after a
lazy install and rebinds the module-level aliases that the top-level
`except ImportError` block set to `typing.Any`. TypeHandler was left out
of all three places: the `global` declaration, the
`from telegram.ext import (...)` list, and the assignments.
So whenever the top-level import fails and the deferred path runs, every
other alias is restored and TELEGRAM_AVAILABLE flips to True, while
TypeHandler stays `Any`. Handler registration then raises
`TypeError: Any cannot be instantiated` and the gateway reports:
[Telegram] Failed to connect to Telegram: Any cannot be instantiated
Gateway started with no connected platforms
The 22.6 -> 22.8 pin bump named in #85272 is the trigger rather than the
defect: it makes the top-level import fail, which is what routes the
module through the deferred path where the omission has always been.
Pavel Lesyuk
a85e45da13