Add helm chart deployment

[warjiang]

Description

if we use pagespy in self-hosted way, we need to ensure the pagespy is high-available. Use kubernertes is first choice for many scenarios. Helm chart is the most popular app management tool, so there is some need to introduct helm chart deployment

Suggested solution

add helm chart support, but we need resolve some problems first:

• add support of database in page-spy-api module
• fix problem of use dns instead of ip address in rpcAddress field

Alternative

No response

Additional context

No response

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