Update xlrd to 2.0.1 (#653)

* Update xlrd from 1.2.0 to 2.0.1 for Python > 3.6

Co-authored-by: mrbean-bremen <[email protected]>

Author: pyup-bot

extra_requirements.txt

@@ -15,5 +15,6 @@ scandir>=1.8
 # we use the latest version to see any problems with new versions
 pandas==1.1.5; python_version <= '3.6'
 pandas==1.3.4; python_version > '3.6'
-xlrd==1.2.0
+xlrd==1.2.0; python_version <= '3.6'
+xlrd==2.0.1; python_version > '3.6'
 openpyxl==3.0.9