Revert to numpy >= 1.26.4

Author: cbrnr

pyproject.toml

@@ -10,7 +10,7 @@ license = {text = "MIT License"}
 readme = "README.md"
 requires-python = ">= 3.9"
 dependencies = [
-    "numpy >= 2.0.0",
+    "numpy >= 1.26.4",
     "scipy >= 1.13.0",
     "pandas >= 2.2.0",
     "soundfile >= 0.10.0",