Fix a DeprecationWarning test with a more specific error msg

Author: FrancescAlted

ANNOUNCE.rst

@@ -1,7 +1,7 @@
 Announcing Python-Blosc2 3.5.1
 ==============================
 
-This release:
+In this release:
 ✅ Dramatically reduced memory usage when computing slices of lazy expressions
    (up to 20x less memory)
 ✅ Added fast path for small slices that fit in memory (up to 20x faster)

tests/ndarray/test_transpose.py

@@ -226,7 +226,7 @@ def test_disk():
 def test_transpose(shape_chunks_blocks_2d, dtype_fixture):
     shape, chunks, blocks = shape_chunks_blocks_2d
     a = blosc2.linspace(0, 1, shape=shape, chunks=chunks, blocks=blocks, dtype=dtype_fixture)
-    with pytest.warns(DeprecationWarning):
+    with pytest.warns(DeprecationWarning, match="^transpose is deprecated"):
         at = blosc2.transpose(a)
 
     na = a[:]