Scheduled weekly dependency update for week 46 (#90)

* Update requests from 2.24.0 to 2.25.0

* Update tqdm from 4.51.0 to 4.52.0

* Update urllib3 from 1.25.11 to 1.26.2

requirements.txt

@@ -26,13 +26,13 @@ Pygments==2.7.2
 pytest==6.1.2
 pytest-cov==2.10.1
 readme-renderer==28.0
-requests==2.24.0
+requests==2.25.0
 requests-toolbelt==0.9.1
 six==1.15.0
 toml==0.10.2
 tox==3.20.1
-tqdm==4.51.0
+tqdm==4.52.0
 twine==3.2.0
-urllib3==1.25.11
+urllib3==1.26.2
 virtualenv==20.1.0
 webencodings==0.5.1