[BUG] Adjust the sortByResourceRate sorting from large to small.

[sjgllgh]

What is the purpose of the change

Adjust the sortByResourceRate sorting from large to small.

Related issues/PRs

Related issues: #4913

Brief change log

• Modify the ResourceNodeSelectRule.java ;

Checklist

• [x] I have read the Contributing Guidelines on pull requests.
• [x] I have explained the need for this PR and the problem it solves
• [x] I have explained the changes or the new features added to this PR
• [x] I have added tests corresponding to this change
• [x] I have updated the documentation to reflect this change
• [x] I have verified that this change is backward compatible (If not, please discuss on the Linkis mailing list first)
• [x] If this is a code change: I have written unit tests to fully verify the new behavior.