Pack dashboard resources in release package

[fuyufjh]

This will actually break the old-version RW, but it's acceptable to me.

This is because RisingWave's Web resources are served from GitHub repo dashboard-artifact branch, and it's not versioned, i.e. only the latest main build will be kept.

https://github.com/risingwavelabs/risingwave/blob/ae7d7ba426818d43209be545ad72f979ce3dacc0/docker/Dockerfile.hdfs#L30-L31

Hope someday we can ship the frontend resource into / along with the binary.

Originally posted by @fuyufjh in https://github.com/risingwavelabs/risingwave/issues/15277#issuecomment-1965676608

I think we can take the same approach as the java code, that is, ship the .jars with RisingWave binary together in the tar.gz file