Merge pull request adafruit#6415 from dhalbert/7.3.x-fstrings-for-all

Turn on f-strings for all builds in 7.3.0

Merge pull request adafruit#6415 from dhalbert/7.3.x-fstrings-for-all

Turn on f-strings for all builds in 7.3.0

Merge pull request adafruit#6409 from dhalbert/messages-refactor

message consolidation and more use of validators

Merge pull request adafruit#6406 from dhalbert/restore-gc-collect-on-…

…import

Restore automatic gc_collect() after an import

Merge pull request adafruit#6400 from Neradoc/fix-rtd-with-frozen-mod…

…ules

Fetch the submodules in readthedocs with ci_fetch_deps.py

Merge pull request adafruit#6316 from dhalbert/spacing-fix

update frozen libraries and remove stray space

Merge pull request adafruit#6262 from weblate/weblate-circuitpython-main

Translations update from Hosted Weblate

Merge pull request adafruit#6238 from dhalbert/ringbuf-free-fix

Free ringbuf buffer by relying on gc, not gc_free()

Merge pull request adafruit#6184 from PontusO/main

Added Challenger 840 board.

Merge pull request adafruit#6212 from dhalbert/7.2.x-6103-backport

7.2.x adafruit#6103 backport