Switch from pyqrcode to pyqrcode-binary

[di]

Towards #18058.

This changes our dependency from https://pypi.org/project/PyQRCode/ (last release in 2016, no wheels available) to https://pypi.org/project/pyqrcode-binary/, which mirrors binary builds for each release of the original dependency.

[miketheman]

Curious - did you check to see if the more maintained, pure Python options of qrcode or segno are better?

[di]

Better how? I think the current library is working fine for our needs, it just needs wheels.

[miketheman]

Better, as in reducing the amount of compiled binaries necessary to audit in the event of some problem.

[di]

To be clear, pyqrcode-binary has pure Python wheels, there is no native code or binaries. So the tradeoff here is one wheel based on a dependency we already use vs. one wheel for a new dependency we'd have to adopt.