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 <[email protected]>

Author: anthonyshew

crates/turborepo-lib/src/boundaries/mod.rs

@@ -434,6 +434,7 @@ impl Run {
             } else {
                 Syntax::Es(EsSyntax {
                     jsx: true,
+                    import_attributes: true,
                     ..Default::default()
                 })
             };

crates/turborepo/tests/snapshots/boundaries__boundaries_get_boundaries_lints_([email protected]).snap

@@ -26,6 +26,10 @@ expression: query_output
           "message": "import `../../packages/another/index.jsx` leaves the package",
           "import": "../../packages/another/index.jsx"
         },
+        {
+          "message": "import `../../packages/utils/data.json` leaves the package",
+          "import": "../../packages/utils/data.json"
+        },
         {
           "message": "import `@/../../packages/another/index.jsx` leaves the package",
           "import": "@/../../packages/another/index.jsx"

turborepo-tests/integration/fixtures/boundaries/apps/my-app/import-attributes.js

@@ -0,0 +1,6 @@
+// Test import attributes parsing
+import pkg from './package.json' with { type: 'json' };
+import data from '../../packages/utils/data.json' with { type: 'json' };
+
+console.log(pkg.name);
+console.log(data);

turborepo-tests/integration/fixtures/boundaries/packages/utils/data.json

@@ -0,0 +1,4 @@
+{
+  "name": "test-data",
+  "value": 42
+}