Refresh optional dependencies

Author: mdmintz

requirements.txt

@@ -122,7 +122,7 @@ rich==12.5.1;python_version>="3.6" and python_version<"4.0"
 
 coverage==5.5;python_version<"3.6"
 coverage==6.2;python_version>="3.6" and python_version<"3.7"
-coverage==6.4.2;python_version>="3.7"
+coverage==6.4.4;python_version>="3.7"
 pytest-cov==2.12.1;python_version<"3.6"
 pytest-cov==3.0.0;python_version>="3.6"
 flake8==3.7.9;python_version<"3.6"

setup.py

@@ -248,7 +248,7 @@
         "coverage": [
             'coverage==5.5;python_version<"3.6"',
             'coverage==6.2;python_version>="3.6" and python_version<"3.7"',
-            'coverage==6.4.2;python_version>="3.7"',
+            'coverage==6.4.4;python_version>="3.7"',
             'pytest-cov==2.12.1;python_version<"3.6"',
             'pytest-cov==3.0.0;python_version>="3.6"',
         ],