Bump botocore from 1.19.22 to 1.19.28 in /requirements (#16075)

Bumps [botocore](https://github.com/boto/botocore) from 1.19.22 to 1.19.28.
- [Release notes](https://github.com/boto/botocore/releases)
- [Changelog](https://github.com/boto/botocore/blob/develop/CHANGELOG.rst)
- [Commits](https://github.com/boto/botocore/compare/1.19.22...1.19.28)

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

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

requirements/prod.txt

@@ -161,9 +161,9 @@ boto3==1.16.22 \
 celery==4.4.7 \
     --hash=sha256:a92e1d56e650781fb747032a3997d16236d037c8199eacd5217d1a72893bca45 \
     --hash=sha256:d220b13a8ed57c78149acf82c006785356071844afe0b27012a4991d44026f9f
-botocore==1.19.22 \
-    --hash=sha256:5cee9d02d335a0c43d225da6595e6f95970a01ecaebeba757ac22130f2d31495 \
-    --hash=sha256:87d77925ea8d35898ff1627f6f97d396bed44d37fff960daae181a76ba413546
+botocore==1.19.28 \
+    --hash=sha256:d8dab9b74dc0ad2e5439e5ea3c119e234d2f02952f37f379d9a74adfa305ed75 \
+    --hash=sha256:97741448e63850895818193c29b93ec6319135587ae4994a6f611ffccb1a978e
 # chardet is required by requests
 chardet==3.0.4 \
     --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691 \