Add ipynb format check (#1439)

* Update test_qlib_from_source.yml

* add ipynb format check to workflow

* test ipynb CI

* modify nbqa check path

* add pylint flake8 mypy check to ipynb

* check ipynb with black and pylint

* reformat .ipynb files

* format line length

nbqa black . -l 120

* update nbqa .ipynb format CI

* format old ipynb files

* add nbconvert check to CI

* adjust CI order to avoid repeating download data

setup.py

@@ -146,6 +146,9 @@ setup(
             # References: https://github.com/python/typeshed/issues/8799
             "mypy<0.981",
             "flake8",
+            "nbqa",
+            "jupyter",
+            "nbconvert",
             # The 5.0.0 version of importlib-metadata removed the deprecated endpoint,
             # which prevented flake8 from working properly, so we restricted the version of importlib-metadata.
             # To help ensure the dependencies of flake8 https://github.com/python/importlib_metadata/issues/406