[Fix](Nereids) fix leading with different be instance number (#36613)

[LiBinfeng-01]

cherry-pick: #36613 Problem: When use different be number to test leading explain shape plan, physical distribute plan would differ due to different be numbers Solved: Disable physical distribute node showing in fix leading cases

Proposed changes

Issue Number: close #xxx

[doris-robot]

Thank you for your contribution to Apache Doris. Don't know what should be done next? See How to process your PR

Since 2024-03-18, the Document has been moved to doris-website. See Doris Document.

[LiBinfeng-01]

run buildall

[morrySnow]

run p0

[morrySnow]

run p0