fix: data2 value

[zhangsoledad]

What is changed and how it works?

The hash type is split into the high 7 bits and the low 1 bit, when the low 1 bit is 1, it indicates the type, when the low 1 bit is 0, it indicates the data, and then it relies on the high 7 bits to indicate that the data actually corresponds to the version.
So data2 should be 4.

Related changes

• PR to update owner/repo:
• Need to cherry-pick to the release branch

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

Side effects

• Performance regression
• Breaking backward compatibility

Release note

None: Exclude this PR from the release note.

[eval-exec]

CI action failed, this PR need re-execute make gen-rpc-doc.