cmake is a build dependency

Author: FrancescAlted

.github/workflows/build.yml

@@ -1,6 +1,6 @@
 name: Tests
 
-on: [push, pull_request]
+on: [push]
 
 jobs:
   build_wheels:

.github/workflows/cibuildwheels.yml

@@ -12,7 +12,7 @@ on:
       - main
 
 env:
-  CIBW_BEFORE_BUILD: pip install -r requirements-build.txt
+  #CIBW_BEFORE_BUILD: pip install -r requirements-build.txt
   CIBW_BUILD_VERBOSITY: 1
   CIBW_TEST_REQUIRES: pytest numpy<2 psutil msgpack
   CIBW_TEST_COMMAND: python -m pytest -m "not heavy" {project}/tests

pyproject.toml

@@ -1,5 +1,11 @@
 [build-system]
-requires = ["setuptools", "scikit-build", "cython", "ninja", "oldest-supported-numpy"]
+requires = [
+    "setuptools",
+    "scikit-build",
+    "cython",
+    "cmake",
+    "ninja",
+    "oldest-supported-numpy"]
 
 [project]
 name = "blosc2"