Bump redo from 2.0.4 to 3.0.0 (#697)

Bumps [redo](https://github.com/mozilla-releng/redo) from 2.0.4 to 3.0.0.
- [Changelog](https://github.com/mozilla-releng/redo/blob/master/HISTORY.rst)
- [Commits](https://github.com/mozilla-releng/redo/commits)

---
updated-dependencies:
- dependency-name: redo
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements.txt

@@ -1,6 +1,6 @@
 mozinfo >= 1.0.0
 mozilla-version >= 2.0.0
 progressbar2 >= 3.34.3
-redo == 2.0.4
+redo == 3.0.0
 requests >= 2.21.0, <3.0.0
 treeherder-client >= 5.0.0, <6.0.0