rqt_web: 0.4.9-1 in 'noetic/distribution.yaml' [bloom]

[dirk-thomas]

Increasing version of package(s) in repository rqt_web to 0.4.9-1:

• upstream repository: https://github.com/ros-visualization/rqt_web.git
• release repository: https://github.com/ros-gbp/rqt_web-release.git
• distro file: noetic/distribution.yaml
• bloom version: 0.9.3
• previous version for package: null

rqt_web

* bump CMake minimum version to avoid CMP0048 warning
* add Python 3 conditional dependencies (#2 <https://github.com/ros-visualization/rqt_web/issues/2>)
* autopep8 (#1 <https://github.com/ros-visualization/rqt_web/issues/1>)