Update dependency charset-normalizer to v2.1.1

Author: renovate[bot]

requirements.txt

@@ -10,7 +10,7 @@ brotlipy==0.7.0
 bs4==0.0.1
 cchardet==2.1.7
 cffi==1.15.1
-charset-normalizer==2.0.10; python_full_version >= "3.5.0" and python_version >= "3.6"
+charset-normalizer==2.1.1; python_full_version >= "3.5.0" and python_version >= "3.6"
 colorama==0.4.6; python_version >= "3.5" and python_full_version < "3.0.0" and sys_platform == "win32" or sys_platform == "win32" and python_version >= "3.5" and python_full_version >= "3.5.0"
 frozenlist==1.3.0; python_version >= "3.7"
 idna==3.3; python_version >= "3.6"