[Amoro-3487] fix 404 when access hive-upgrade page

[Liammcl]

Why are the changes needed?

Close #3487 .

Brief change log

1. Changed API request paths to start with a leading / (e.g., api/ams/v1/ to /api/ams/v1/) to ensure consistency and adhere to standardized path conventions.
2. Functions affected: getUpgradeStatus, getHiveTableDetail, upgradeHiveTable, getUpgradeProperties.

How was this patch tested?

• Add some test cases that check the changes thoroughly including negative and positive cases if possible
• Add screenshots for manual tests if appropriate
• Run test locally before making a pull

Documentation

• Does this pull request introduce a new feature? (yes / no) no
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)