Make `sqlc.embed` compatible with `pgFormatter` and `sql-formatter`

[Dragon-Huang0403]

What does this PR fixed?

• This PR addresses issues with SQL formatting tools pgFormatter and sql-formatter. These tools are used to format SQL, similar to how go fmt formats Go code.
• Both formatters, by default, add spaces before function calls. This changes sqlc.embed(name) to sqlc.embed (name), which sqlc cannot parse correctly:

$ cd example/batch

$ sqlc generate                                                                                                                                                                                                                                   
> # package batch
> postgresql/query.sql:10:1: edited query syntax is invalid: syntax error at or near ")"