Bump tcms-api from 8.6.0 to 9.0

Bumps [tcms-api](https://github.com/kiwitcms/tcms-api) from 8.6.0 to 9.0.
- [Release notes](https://github.com/kiwitcms/tcms-api/releases)
- [Commits](kiwitcms/tcms-api@v8.6.0...v9.0)

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

requirements.txt

@@ -1,2 +1,2 @@
 tap.py==3.0
-tcms-api==8.6.0
+tcms-api==9.0