bug: hides virtual registry scopes for project deploy tokens

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What does this MR do and why?

• fixes #538931 (closed)
• Adds token type check for virtual registry scope for deploy tokens
• Adds test cases for same

References

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Navigate to a project's settings > Repository > Deploy Tokens
2. Create a new deploy token
3. Verify that the "Read virtual registry" and "Write virtual registry" scopes are not visible
4. Navigate to a group's settings > Repository > Deploy Tokens
5. Create a new deploy token
6. Verify that the "Read virtual registry" and "Write virtual registry" scopes are visible (if dependency proxy is enabled)

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