Routine dependency updates (#6538)
Routine dependency updates (#6538)

- Updating bleach (3.1.0 -> 3.1.1)
    https://github.com/mozilla/bleach/blob/v3.1.1/CHANGES

  - Updating boto3 (1.12.0 -> 1.12.2)
    https://github.com/boto/boto3/blob/1.12.2/CHANGELOG.rst

  - Updating botocore (1.15.0 -> 1.15.2)
    https://github.com/boto/botocore/blob/1.13.35/CHANGELOG.rst

  - Updating regex (2020.1.8 -> 2020.2.18)
    https://bitbucket.org/mrabarnett/mrab-regex/commits/42ec25056389df5ac6b06f599de130f17922db53

We don't use regex directly; it's a dependency of Black's.
Elchi3/kuma,Elchi3/kuma,escattone/kuma,a2sheppy/kuma,mozilla/kuma,a2sheppy/kuma,a2sheppy/kuma,Elchi3/kuma,mozilla/kuma,a2sheppy/kuma,Elchi3/kuma,escattone/kuma,Elchi3/kuma,a2sheppy/kuma,mozilla/kuma,mozilla/kuma,mozilla/kuma,escattone/kuma