Bump boto3 from 1.18.13 to 1.18.60

Bumps [boto3](https://github.com/boto/boto3) from 1.18.13 to 1.18.60.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.18.13...1.18.60)

---
updated-dependencies:
- dependency-name: boto3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements/main.txt

@@ -54,13 +54,13 @@ bleach==4.1.0 \
     --hash=sha256:0900d8b37eba61a802ee40ac0061f8c2b5dee29c1927dd1d233e075ebf5a71da \
     --hash=sha256:4d2651ab93271d1129ac9cbc679f524565cc8a1b791909c4a51eac4446a15994
     # via readme-renderer
-boto3==1.18.13 \
-    --hash=sha256:8c3676239a35eba465e7df2df58ca400219729d4b732b7202f18caf0308ececa \
-    --hash=sha256:bd6524c4ac854eb1fa31ab7040d405385f11231b84988b2a5c8e9896a3da0bf1
+boto3==1.18.60 \
+    --hash=sha256:45709a04ec5fb67ce5a8eaade3eb0ab24d6eb08d9a9ca6bdb2153047896197fc \
+    --hash=sha256:8f3face72d2ac6ad36bd7724410548891ce338b350e6f98574890a7b1d425d78
     # via -r requirements/main.in
-botocore==1.21.13 \
-    --hash=sha256:37c1c17326f9c81aba73efc6b496ccfe536822e576bc89ceee460dc18108f3a0 \
-    --hash=sha256:ce20da2dff6ab36ebee3b2efdf0bcc859ee1a7f8ec0d2ae3eaac5f50f6c729fd
+botocore==1.21.60 \
+    --hash=sha256:3e746ca75fb7539ba3f001169264fa54dfaded2477ffc8bd979ce1e1df200620 \
+    --hash=sha256:890a5835ac00415ff78f1c7118a774aae83c0c70742284b68abd1176f9d05761
     # via
     #   boto3
     #   s3transfer