azure-cli depends on prerelease version of azure-mgmt-rdbms

> ### `az feedback` auto-generates most of the information requested below, as of CLI version 2.0.62

**Describe the bug**

Looks like the bump came in this PR

https://github.com/Azure/azure-cli/pull/17359/files#diff-481a8a6350b8d10423625da596b3d9ce75402d0e8b80a60c4d1ecfb54044bb18R110

```
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: Could not find a version that matches azure-mgmt-rdbms~=8.1.0b2 (from azure-cli==2.22.1->-r /var/folders/qp/yzbs9y3s7mq6p6gs54_gw1ym0000gn/T/pipenvbyq6t68zrequirements/pipenv-xcygbhqf-constraints.txt (line 11))
Tried: 0.1.0, 0.1.0, 0.3.0, 0.3.0, 0.3.1, 0.3.1, 1.0.0, 1.0.0, 1.1.0, 1.1.0, 1.1.1, 1.1.1, 1.2.0, 1.2.0, 1.3.0, 1.3.0, 1.4.0, 1.4.0, 1.4.1, 1.4.1, 1.5.0, 1.5.0, 1.6.0, 1.6.0, 1.7.0, 1.7.0, 1.7.1, 1.7.1, 1.8.0, 1.8.0, 1.9.0, 1.9.0, 2.0.0, 2.0.0, 2.1.0, 2.1.0, 2.2.0, 2.2.0, 8.0.0, 8.0.0
Skipped pre-versions: 0.2.0rc1, 0.2.0rc1, 3.0.0rc1, 3.0.0rc1, 3.1.0rc1, 3.1.0rc1, 7.0.0b1, 7.0.0b1, 8.0.0b1, 8.0.0b1, 8.1.0b1, 8.1.0b1, 8.1.0b2, 8.1.0b2
```

**To Reproduce**

**Expected behavior**

**Environment summary**

**Additional context**

Would be nice to avoid needing to call `pipenv lock --pre` to install a non-prerelease azure-cli