refactor(tibuild): move pkg/database to internal/database

[wuhuizuo]

Signed-off-by: wuhuizuo [email protected]

[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.

Summary of changes:

• The pkg/database package has been moved to internal/database.
• All import paths that previously pointed to pkg/database have been updated to point to internal/database.

Potential problems:

• There might be other packages that still import from the old pkg/database path, which can cause build errors.

Fixing suggestions:

• Check all files in the project and make sure that all import paths have been updated.
• Run the test suite to ensure that there are no build errors caused by the path change.
• If any errors are found, update the import paths accordingly.

[wuhuizuo]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: wuhuizuo

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