style(rust): format MT teardown bridge

Apply the repository formatter to the new MT job-table teardown projection and its focused callback-order test. This keeps the accepted lifecycle seam behavior unchanged while restoring the crate's formatting contract.

Test Plan:

- cargo +nightly fmt --manifest-path rust/Cargo.toml --all

- git diff --cached --check

rust/src/zstdmt_compress.rs

@@ -4670,9 +4670,7 @@ pub struct ZSTDMT_RustFreeJobsTableProjection {
 const _: () = {
     assert!(size_of::<JobTableDestroySync>() == size_of::<usize>());
     assert!(offset_of!(ZSTDMT_RustFreeJobsTableProjection, jobTable) == 0);
-    assert!(
-        offset_of!(ZSTDMT_RustFreeJobsTableProjection, nbJobs) == size_of::<usize>()
-    );
+    assert!(offset_of!(ZSTDMT_RustFreeJobsTableProjection, nbJobs) == size_of::<usize>());
     assert!(
         offset_of!(ZSTDMT_RustFreeJobsTableProjection, jobSize)
             == if size_of::<usize>() == 8 { 16 } else { 8 }
@@ -4710,9 +4708,7 @@ unsafe fn free_job_table_with_sync(
     unsafe { free_job_table_with_sync_projection(projection) };
 }
 
-unsafe fn free_job_table_with_sync_projection(
-    projection: ZSTDMT_RustFreeJobsTableProjection,
-) {
+unsafe fn free_job_table_with_sync_projection(projection: ZSTDMT_RustFreeJobsTableProjection) {
     if projection.jobTable.is_null() {
         return;
     }
@@ -8956,10 +8952,7 @@ mod tests {
         }
     }
 
-    unsafe extern "C" fn free_jobs_table_test_free(
-        opaque: *mut c_void,
-        allocation: *mut c_void,
-    ) {
+    unsafe extern "C" fn free_jobs_table_test_free(opaque: *mut c_void, allocation: *mut c_void) {
         assert_eq!(allocation, opaque);
         unsafe {
             (*opaque.cast::<FreeJobsTableTestContext>())