compat: Drizzle + MySQL end-to-end CI job

[TheHypnoo]

50-line Drizzle program against real MySQL via @perry/mysql, run in CI.

Relates #489. Part of #793.

[proggeramlug]

Tried compiling the new Drizzle e2e scaffold under v0.5.914. Doesn't reach MySQL — the package compile stage fails much earlier:

```
Compile package: drizzle-orm
Compile package: mysql2
...
Error: Failed to parse mysql2/lib/base/connection.js: Parse error: Error { error: (35073..35074, TS1109) }
```

Filed as #845. mysql2's `base/connection.js` chokes the parser after the `cjs_wrap` rewrite, and the reported offset is past EOF of the original source — both sub-bugs in one.

Until #845 lands the Drizzle e2e can't reach the codegen stage, so the existing #618 (IIFE-namespace function-static properties) is next in the queue, not the current blocker.