build(deps): bump boto3 from 1.13.19 to 1.13.20 (#45)

Bumps [boto3](https://github.com/boto/boto3) from 1.13.19 to 1.13.20.
- [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/1.13.19...1.13.20)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Pipfile.lock

@@ -53,11 +53,11 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:2e58368d32171f42100353007fb48fe583ea9deafd0ec556aa2bc1ce1582d06d",
-                "sha256:c774003dc13d6de74b5e19d2b84d625da4456e64bd97f44baa1fcf40d808d29a"
+                "sha256:26f8564b46d009b8f4c6470a6d6cde147b282a197339c7e31cbb0fe9fd9e5f5d",
+                "sha256:f59d0bd230ed3a4b932c5c4e497a0e0ff3c93b46b7e8cde54efb6fe10c8266ba"
             ],
             "index": "pypi",
-            "version": "==1.13.19"
+            "version": "==1.13.20"
         },
         "botocore": {
             "hashes": [