* Upgrade to new lockfile format
Now requires poetry >= 1.2.2 to read and poetry >= 1.3.0 to write.
Cheat sheet:
```
poetry --version
poetry show > scratch/before
pipx upgrade poetry
poetry --version
poetry show > scratch/after
diff scratch{before,after} && echo "no change!"
```
* Use Poetry 1.3.2 when reading or writing lockfile
* Remove unneeded(?) poetry dep for cibuildwheel
* Update docs
* Remove redundant call to setup-python
* Remove outdated comments related to Poetry 1.x
* Remove outdated docs line
was fixed in #13082
* Minor improvements to poetry cheat sheet
* Invoke setup-python-poetry with explicit version
Not sure about this. It's hardcoding versions everywhere.
* Changelog
* Check the lockfile is version 2.0
Might one day incorporate other checks like #14742
* Typo fixes, thanks Sean
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
David Robertson