fix: resource dependencies for alicloud rds

[liu-hm19]

What type of PR is this?

/kind bug

What this PR does / why we need it:

This PR fixes a bug of resource dependsOn field for Alicloud RDS.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Additional documentation e.g., design docs, usage docs, etc.: