Feat improve necessary check

[chengcyber]

Basic Checks

Have you run rush change for this change?

• Yes
• No

If No, please run rush change before, this is necessary.

If adding a new feature, the PR's description includes:

• Reason for adding this feature
• How to use
• A basic example

Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and migration path for existing applications:

Summary

Improve the logic to avoid unnecessary git operations when tracking remote branches.

Detail

1. Do not run "git remote set-branches --add" if it's not a single branch mode
2. Do not run the special logic for temporarily turn off single branch mode if it's not a single branch mode.

How to test it

Local