Ramps UAT: Provision Testing in Dev

## Summary
The EntApps team is conducting end-to-end UAT of Zuora Ramps prior to implementation (expected Feb 1, 2023). This issue will be used to track UAT efforts of ~"group::provision" in the dev stack only. This will require testing in a local CDot environment. Because of this, more thorough testing will be conducted in Staging by Fulfillment in the related issue: https://gitlab.com/gitlab-org/customers-gitlab-com/-/issues/5742.

More details on full project testing can be found in the [EntApps related issue](https://gitlab.com/gitlab-com/business-technology/enterprise-apps/financeops/finance-systems/-/issues/1051)

## Test Cases for Dev
The full list of test cases can be found in: https://docs.google.com/spreadsheets/d/1xmdJ6ToiCyFNtqjrNPvwcGR7gCvkskjLnZXwAzEMT40/edit#gid=0

For dev testing, we should pick a few line items from this sheet (a few differing scenarios) to ensure the provisioning is working as expected.

## Result
Sign-off from ~"group::provision" that provisioning appears to be working correctly  and we are comfortable with proceeding with Staging deployment.

## Testing results

### [New Self-Managed Subscription](https://gitlab--sandbox.sandbox.my.salesforce.com/a1j8F0000007cNh)

1. :white_check_mark: Created subscription looked good. 
2. :white_check_mark: Subscription page in CustomersDot: 
<details>
![image](/uploads/4df7879e8e8d71c4d17cc9fcac9e949e/image.png)
   </details>

4. :white_check_mark: Email(s) with activation code was sent (to customer and SFDC): 
 
   <details>
   ![Screenshot_2023-02-23_at_2.13.55_PM](/uploads/e7096be3defd71ff7735ac2e8abbc708/Screenshot_2023-02-23_at_2.13.55_PM.png)
   </details>

5. :white_check_mark: Instance activated with the subscription: 
   <details>
   ![new_sm_subscription_-_activated_instance](/uploads/4c5210c63d8ab31cf4ad27a0b260aa9f/new_sm_subscription_-_activated_instance.png)
   </details>

### [New Subscription with Add-On](https://gitlab--sandbox.sandbox.my.salesforce.com/a1j8F0000007cUX)

1. :white_check_mark:  Created subscription looks good.
2. :white_check_mark:  Subscription page in CustomersDot shows paid SaaS plan and Storage.

<details>
![image](/uploads/2cc7c98ab03ee324130ac7e249709faa/image.png)
   </details>

3. :white_check_mark: Email(s)  was sent (to customer and SFDC):
   
<details>
   ![Screenshot_2023-02-23_at_2.14.06_PM](/uploads/290030010fae30b1b89f7ddf34701f7c/Screenshot_2023-02-23_at_2.14.06_PM.png)
   </details>

4. :white_check_mark: Linked after purchase and data was successfully and correctly synced.

### [Add Seats to Existing Subscription](https://gitlab--sandbox.sandbox.my.salesforce.com/a1j8F0000007cOa)

All looks good :white_check_mark: - changed year 1 seats from 50 to 60.

<details><summary>See details</summary>
![image](/uploads/98f1dcd0052ee81b589006420f13ecca/image.png)
</details>

### [Renew Subscription](https://gitlab--sandbox.sandbox.my.salesforce.com/a1j8F0000007cUX)

All looks good :white_check_mark: - additional year was added on for renewal.

<details><summary>See details</summary>
![image](/uploads/c2b5cafc4a30f8a56d0f7e31ec92961d/image.png)
</details>

### [Upgrade Subscription](https://gitlab--sandbox.sandbox.my.salesforce.com/a1j8F0000007cUw)

Upgraded to SaaS Ultimate update was successful :white_check_mark: 

<details><summary>See details</summary>

![image](/uploads/66dbf1a6101a1ba2a57f1e86b98b7eab/image.png)

</details>


### [Add True-Up Product](https://gitlab--sandbox.sandbox.my.salesforce.com/a1j8F0000007cWy)

True-up product was added as a separate line item. :white_check_mark: 

<details><summary>See details</summary>

![image](/uploads/4f09cd2e805d25c79d3f7e4065e9f37d/image.png)

</details>

Story points: 2.0