Rename.dataset() doesn't convert dataset name to uppercase

[AndrewTwydell]

Describe the bug

When renaming a dataset (including favourites), the rename function doesn't convert any lowercase characters in the dataset name to uppercase unlike create.dataset() where each lowercase character is made uppercase.

To Reproduce

Steps to reproduce the behavior:

1. Create a dataset.
2. Click on 'Rename'.
3. Rename dataset using a mixture of uppercase and lowercase characters.
4. See error (Dataset displays with the characters inputted in step 3).

Expected behavior

All dataset name characters should be displayed as uppercase after a rename where the user uses lowercase characters.

Screenshots

Desktop (please complete the following information):

• OS: MacOS
• Zowe Explorer Version: 1.7.1
• (Optional) Zowe CLI Version: 6.19.1
• (Optional) Are you using Secure Credential Store? No

Additional context

N/A