update harmony (#421)

* update harmony

* fix release notes

Author: Intron7

docs/release-notes/0.13.0.md

@@ -1,4 +1,4 @@
-### 0.13.0 {small}`the-future`
+### 0.13.0 {small}`2025-08-06`
 
 ```{rubric} Features
 ```
@@ -9,6 +9,7 @@
 
 ```{rubric} Performance
 ```
+* speed up `pp.harmony_integrate` for smaller datasets {pr}`421` {smaller}`S Dicks`
 
 ```{rubric} Bug fixes
 ```

src/rapids_singlecell/preprocessing/_harmony/_helper.py

@@ -196,7 +196,7 @@ def _scatter_add_cp_bias_csr(
     n_pcs = X.shape[1]
 
     threads_per_block = 1024
-    if n_cells < 100_000:
+    if n_cells < 300_000:
         blocks = int((n_pcs + 1) / 2)
         scatter_kernel0 = _get_scatter_add_kernel_with_bias_cat0(X.dtype)
         scatter_kernel0(