Update dependency idna to v3.4

Author: renovate[bot]

requirements.txt

@@ -13,7 +13,7 @@ cffi==1.15.1
 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"
+idna==3.4; python_version >= "3.6"
 loguru==0.6.0; python_version >= "3.5"
 multidict==6.0.4; python_version >= "3.6"
 pycares==4.2.0