chore(schema-registry-ui): upgrade to new `apiVersion: apps/v1`

[hongbo-miao]

What this PR does / why we need it:

Just a small update. 😃

Got this error when try to deploy

Error: unable to build kubernetes objects from release manifest: resource mapping not found for name: "schema-registry-ui" namespace: "" from "": no matches for kind "Deployment" in version "apps/v1beta2"

Special notes for your reviewer:

If applicable:

• [ ] this PR contains documentation (是否包含文档)
• [ ] this PR contains unit tests (是否包含测试、实际环境有效性验证)
• [ ] this PR has been tested for backwards compatibility (是否向后兼容)

[CLAassistant]

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