build(deps-dev): bump importlib-metadata from 2.1.0 to 2.1.1

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/master/CHANGES.rst)
- [Commits](https://github.com/python/importlib_metadata/compare/v2.1.0...v2.1.1)

Signed-off-by: dependabot[bot] <support@github.com>

Pipfile.lock

@@ -80,10 +80,10 @@
         },
         "pytz": {
             "hashes": [
-                "sha256:a494d53b6d39c3c6e44c3bec237336e14305e4f29bbf800b599253057fbb79ed",
-                "sha256:c35965d010ce31b23eeb663ed3cc8c906275d6be1a34393a1d73a41febf4a048"
+                "sha256:3e6b7dd2d1e0a59084bcee14a17af60c5c562cdc16d828e8eba2e683d3a7e268",
+                "sha256:5c55e189b682d420be27c6995ba6edce0c0a77dd67bfbe2ae6607134d5851ffd"
             ],
-            "version": "==2020.1"
+            "version": "==2020.4"
         },
         "six": {
             "hashes": [
@@ -149,12 +149,12 @@
         },
         "importlib-metadata": {
             "hashes": [
-                "sha256:030f3b1bdb823ecbe4a9659e14cc861ce5af403fe99863bae173ec5fe00ab132",
-                "sha256:caeee3603f5dcf567864d1be9b839b0bcfdf1383e3e7be33ce2dead8144ff19c"
+                "sha256:b8de9eff2b35fb037368f28a7df1df4e6436f578fa74423505b6c6a778d5b5dd",
+                "sha256:c2d6341ff566f609e89a2acb2db190e5e1d23d5409d6cc8d2fe34d72443876d4"
             ],
             "index": "pypi",
             "markers": "python_version < '3.8'",
-            "version": "==2.1.0"
+            "version": "==2.1.1"
         },
         "iniconfig": {
             "hashes": [
@@ -206,10 +206,10 @@
         },
         "packaging": {
             "hashes": [
-                "sha256:1a67848015ca7e7879eee30a7ae1053bc04d031e31eccbde6082820150f08621",
-                "sha256:5d21ed3d936beb102850195eadaa1371bfb4b93da6ad63d231410c6dca25a665"
+                "sha256:05af3bb85d320377db281cf254ab050e1a7ebcbf5410685a9a407e18a1f81236",
+                "sha256:eb41423378682dadb7166144a4926e443093863024de508ca5c9737d6bc08376"
             ],
-            "version": "==20.5"
+            "version": "==20.7"
         },
         "pathlib2": {
             "hashes": [