Deployment failed when deploying Data Science module if the createusermanaged is set to false

**Describe the bug**
Deployment failed when deploying Data Science module if the createusermanaged is set to false in Data Science module. The reason is the Terraform module of google managed notebooks ([google_notebooks_runtime](https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/notebooks_runtime)) doesn't have the attribute of "proxy_uri".

**To Reproduce**
Steps to reproduce the behavior:
As described above

**Expected behavior**
Terraform execution should be successful

**Screenshots**
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**Desktop (please complete the following information):**
- OS: MacOS
- Browser Chrome
- Version N/A

**Additional context**
Solution is to fix the notebooks_googlemanaged_urls in modules/data_science/[outputs.tf](http://outputs.tf/). Will raise a PR shortly.

**Logs**
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