Update ormar[sqlite] requirement

Updates the requirements on [ormar[sqlite]](https://github.com/collerek/ormar) to permit the latest version.
- [Release notes](https://github.com/collerek/ormar/releases)
- [Changelog](https://github.com/collerek/ormar/blob/0.20.0/docs/releases.md)
- [Commits](collerek/ormar@0.10.16...0.20.0)

---
updated-dependencies:
- dependency-name: ormar[sqlite]
  dependency-type: direct:production
...

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

requirements.txt

@@ -1,2 +1,2 @@
 fastapi-users >= 6.1.2
-ormar[sqlite] >=0.10.16,<0.11.0
+ormar[sqlite] >=0.10.16,<0.21.0