build(deps): Bump taskcluster from 24.1.2 to 24.1.9 in /tools (#356)

Bumps [taskcluster](https://github.com/taskcluster/taskcluster) from 24.1.2 to 24.1.9.
- [Release notes](https://github.com/taskcluster/taskcluster/releases)
- [Changelog](https://github.com/taskcluster/taskcluster/blob/master/CHANGELOG.md)
- [Commits](taskcluster/taskcluster@v24.1.2...v24.1.9)

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

Author: dependabot-preview[bot]

tools/requirements.txt

@@ -3,4 +3,4 @@ async-timeout<4.0,>=3.0
 logbook
 raven
 structlog
-taskcluster==24.1.2
+taskcluster==24.1.9