Update Python dependencies

Author: mdmintz

requirements.txt

@@ -3,7 +3,7 @@ pip>=21.0.1;python_version>="3.6"
 packaging>=20.9
 setuptools>=44.1.1;python_version<"3.5"
 setuptools>=50.3.2;python_version>="3.5" and python_version<"3.6"
-setuptools>=52.0.0;python_version>="3.6"
+setuptools>=53.0.0;python_version>="3.6"
 setuptools-scm>=5.0.1
 wheel>=0.36.2
 attrs>=20.3.0
@@ -62,11 +62,11 @@ prompt-toolkit==3.0.14;python_version>="3.6"
 ipython==5.10.0;python_version<"3.5"
 ipython==6.5.0;python_version>="3.5" and python_version<"3.6"
 ipython==7.16.1;python_version>="3.6" and python_version<"3.7"
-ipython==7.19.0;python_version>="3.7"
+ipython==7.20.0;python_version>="3.7"
 colorama==0.4.4
 pathlib2==2.3.5;python_version<"3.5"
 importlib-metadata==2.0.0;python_version<"3.6"
-virtualenv>=20.4.1
+virtualenv>=20.4.2
 pymysql==0.10.1;python_version<"3.6"
 pymysql==1.0.2;python_version>="3.6"
 coverage==5.4

setup.py

@@ -107,7 +107,7 @@
         'packaging>=20.9',
         'setuptools>=44.1.1;python_version<"3.5"',
         'setuptools>=50.3.2;python_version>="3.5" and python_version<"3.6"',
-        'setuptools>=52.0.0;python_version>="3.6"',
+        'setuptools>=53.0.0;python_version>="3.6"',
         'setuptools-scm>=5.0.1',
         'wheel>=0.36.2',
         'attrs>=20.3.0',
@@ -166,11 +166,11 @@
         'prompt-toolkit==3.0.14;python_version>="3.6"',
         'ipython==6.5.0;python_version>="3.5" and python_version<"3.6"',
         'ipython==7.16.1;python_version>="3.6" and python_version<"3.7"',
-        'ipython==7.19.0;python_version>="3.7"',
+        'ipython==7.20.0;python_version>="3.7"',
         'colorama==0.4.4',
         'pathlib2==2.3.5;python_version<"3.5"',  # Sync with "virtualenv"
         'importlib-metadata==2.0.0;python_version<"3.6"',  # Sync "virtualenv"
-        'virtualenv>=20.4.1',  # Sync with importlib-metadata and pathlib2
+        'virtualenv>=20.4.2',  # Sync with importlib-metadata and pathlib2
         'pymysql==0.10.1;python_version<"3.6"',
         'pymysql==1.0.2;python_version>="3.6"',
         'coverage==5.4',