build(deps): bump boto3 from 1.16.3 to 1.16.4 (#296)

Bumps [boto3](https://github.com/boto/boto3) from 1.16.3 to 1.16.4.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](https://github.com/boto/boto3/compare/1.16.3...1.16.4)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Pipfile.lock

@@ -74,11 +74,11 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:270ac22a66ce3313e908946193df6e0fb3e81cdf60f5113d62da1d8991b75030",
-                "sha256:e2857738affb394bbe96473de2ed01331685d6e313bb1a3328fd5f47841429cc"
+                "sha256:60c78f96c690974cd388270e4c82e4807f5034c5544f8a26ec3c3844df726cff",
+                "sha256:8611d07488bb36b509d9a79a4ab593cf1c96f9c0d177733007568cbfa1079914"
             ],
             "index": "pypi",
-            "version": "==1.16.3"
+            "version": "==1.16.4"
         },
         "botocore": {
             "hashes": [