build(deps): bump boto3 from 1.16.14 to 1.16.15 (#324)

Bumps [boto3](https://github.com/boto/boto3) from 1.16.14 to 1.16.15.
- [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/1.16.14...1.16.15)

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

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

Pipfile.lock

@@ -74,18 +74,18 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:546586e56ddaf1a75970d65a890351e7093e579a7b686fd45b13e973127dbeec",
+                "sha256:60cc37e027d8911f4890275bcd8d1e3f9f5bdb18b3506641a343ae7e60a1d41a",
-                "sha256:bc77898ff92c8d328b2f2b74c05008179e6b32041c6b635f0199079ed828f60f"
+                "sha256:904d2f1935241c4437781769f9c0d90826470c59eef0d62ea7df4aaf63295d7c"
             ],
             "index": "pypi",
-            "version": "==1.16.14"
+            "version": "==1.16.15"
         },
         "botocore": {
             "hashes": [
-                "sha256:65bb3bfb81e7496c426d89900c91957b1e20c1af4c8c864d2527d623525193ee",
+                "sha256:4e9dc37fb3cc47425c6480dc22999d556ca3cf71714f2937df0fc3db2a7f6581",
-                "sha256:cec2a66faab716773477962be782449f4abdc6475925fc259d66a729a39bc1b7"
+                "sha256:a2d789c8bed5bf1165cc57c95e2db1e74ec50508beb770a89f7c89bc68523281"
             ],
-            "version": "==1.19.14"
+            "version": "==1.19.15"
         },
         "cachetools": {
             "hashes": [