builtins: crdb_internal.request_statement_bundle should format query and ignore whitespace

`crdb_internal.request_statement_bundle` does not run queries through the fn that would parse and generate a statement fingerprint (replacing placeholders with $1 and wrapping clauses in brackets, etc). Instead, the raw string input to the function is used. This can lead to user errors where for example a fingerprint might be inputted to the function with improper formatting. We should do some validation and formatting of the query to ensure the input is valid.

Jira issue: CRDB-30699

Epic CRDB-32397