[fix](Broker Load)fix bug when load data using broker with md5sum()/sm3sum()

[yongjinhou]

Proposed changes

Issue Number: close #12989

Problem summary

You can find the problem details in issue #12989

Checklist(Required)

1. Does it affect the original behavior:
   • Yes
   • No
   • I don't know
2. Has unit tests been added:
   • Yes
   • No
   • No Need
3. Has document been added or modified:
   • Yes
   • No
   • No Need
4. Does it need to update dependencies:
   • Yes
   • No
5. Are there any changes that cannot be rolled back:
   • Yes (If Yes, please explain WHY)
   • No

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[chenlinzhong]

LGTM

[yangzhg]

LGTM