Upgrade embeded setuptools to 46.3.0 (#1827)

Author: gaborbernat

docs/changelog/1827.bugfix.rst

@@ -0,0 +1 @@
+Upgrade embeded ``setuptools`` to ``46.3.0`` from ``46.1.3`` on Python ``3.5+`` - by :user:`gaborbernat`.

src/virtualenv/seed/embed/wheels/__init__.py

@@ -3,27 +3,27 @@
 BUNDLE_SUPPORT = {
     "3.9": {
         "pip": "pip-20.1-py2.py3-none-any.whl",
-        "setuptools": "setuptools-46.1.3-py3-none-any.whl",
+        "setuptools": "setuptools-46.3.0-py3-none-any.whl",
         "wheel": "wheel-0.34.2-py2.py3-none-any.whl",
     },
     "3.8": {
         "pip": "pip-20.1-py2.py3-none-any.whl",
-        "setuptools": "setuptools-46.1.3-py3-none-any.whl",
+        "setuptools": "setuptools-46.3.0-py3-none-any.whl",
         "wheel": "wheel-0.34.2-py2.py3-none-any.whl",
     },
     "3.7": {
         "pip": "pip-20.1-py2.py3-none-any.whl",
-        "setuptools": "setuptools-46.1.3-py3-none-any.whl",
+        "setuptools": "setuptools-46.3.0-py3-none-any.whl",
         "wheel": "wheel-0.34.2-py2.py3-none-any.whl",
     },
     "3.6": {
         "pip": "pip-20.1-py2.py3-none-any.whl",
-        "setuptools": "setuptools-46.1.3-py3-none-any.whl",
+        "setuptools": "setuptools-46.3.0-py3-none-any.whl",
         "wheel": "wheel-0.34.2-py2.py3-none-any.whl",
     },
     "3.5": {
         "pip": "pip-20.1-py2.py3-none-any.whl",
-        "setuptools": "setuptools-46.1.3-py3-none-any.whl",
+        "setuptools": "setuptools-46.3.0-py3-none-any.whl",
         "wheel": "wheel-0.34.2-py2.py3-none-any.whl",
     },
     "3.4": {