[FEATURE]: REGEXP SUPPORT

### Describe what you want

It is necessary to have a regexp operator, this is a basic feature.

This kind of expression is not supported and not correctly escaped.

```ts
sql`${files.path} REGEXP '^/tmp/foo(5)/tutu`
```

No file or test is named. Start by locating the tagged sql template path used by the example and tracing how the REGEXP expression is handled and escaped across supported database dialects. Done means the shown expression is accepted and produces correctly escaped SQL with regexp operator support.

Written by the indexing model from the issue text.