fix(boundaries): Enable import attributes parsing (#11053)
## Summary
Fixes #10961 - Enables parsing of import attributes (the `with` keyword
syntax) in the `turbo boundaries` command.
## Details
The issue was that PR #10078 fixed import attributes parsing for
`turbo-trace` but didn't apply the same fix to the boundaries module.
This caused the boundaries command to fail with "Expected ';', got
'with'" when encountering modern import syntax like:
```js
import pkg from './package.json' with { type: 'json' };
```
## Changes
- Added `import_attributes: true` to the SWC ES syntax configuration in
`crates/turborepo-lib/src/boundaries/mod.rs:437`
- Added test fixture with import attributes to verify the fix works
## Test Plan
- [x] Built the project successfully
- [x] Verified boundaries command now parses files with import
attributes without errors
- [x] Added test fixture file with import attributes that gets checked
by integration tests
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude <noreply@anthropic.com>
