Add back install_requires

Author: aMarcireau

setup.py

@@ -35,6 +35,7 @@ def finalize_options(self):
     description="Read and write Event Stream (.es) files",
     long_description=long_description,
     long_description_content_type="text/markdown",
+    install_requires=["numpy>=1.24"],
     classifiers=[
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",