build(deps): bump zstandard from 0.15.2 to 0.17.0 in /bot

Bumps [zstandard](https://github.com/indygreg/python-zstandard) from 0.15.2 to 0.17.0.
- [Release notes](https://github.com/indygreg/python-zstandard/releases)
- [Changelog](https://github.com/indygreg/python-zstandard/blob/main/docs/news.rst)
- [Commits](indygreg/python-zstandard@0.15.2...0.17.0)

---
updated-dependencies:
- dependency-name: zstandard
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

bot/requirements.txt

@@ -5,4 +5,4 @@ pytoml==0.1.21
 pyyaml==6.0
 tenacity==8.0.1
 tqdm==4.62.3
-zstandard==0.15.2
+zstandard==0.17.0