Pre-commit (#1467)

* pre-commit run trailing-whitespace -a

* pre-commit run end-of-file-fixer -a

* pre-commit run double-quote-string-fixer -a

* pre-commit run requirements-txt-fixer -a

* add pyupgrade hook

* remove pre-commit default_language_version 3.7 (since no upwards incompatible hooks)

.github/actions/macos-before-install.sh

@@ -129,4 +129,3 @@ $pip install pyscard
 $python -V
 
 cd $whereibelong
-