* ci: auto release
* fix: bug getting version in qlib/__init__.py
* fix: bug getting version in setup.py
* fix: bug getting version in qlib/__init__.py
* fix: make the code in CI more complete
* fix: specify the root directory in the get_verison method
* fix: parameter error
* update: optimize code && add comments
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* fix: upgrade the method of installing LightGBM on MacOS
* add: comments
* test: build package && check package
* test: build package && check package
* test: build package && check package
* optimize yml
* fixed a problem with multi index caused by the default value of groupkey
* modify group_key default value
* limit pandas verion
* format with black
* fix docs error
* fix docs error
* fixed bugs caused by pandas upgrade
* remove needless code
* reformat with black
* limit version & add docs