CI: all supported versions of Python are supported by numpy 1.25

As of numpy 1.25.0 we no longer need to pin to the oldest supported versions to
make wheels work reliably.

Author: tacaswell

.github/workflows/cibuildwheel.yml

@@ -91,10 +91,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     env:
       CIBW_BEFORE_BUILD: >-
-        pip install certifi oldest-supported-numpy &&
+        pip install certifi numpy>=1.25 &&
         rm -rf {package}/build
       CIBW_BEFORE_BUILD_WINDOWS: >-
-        pip install certifi delvewheel oldest-supported-numpy &&
+        pip install certifi delvewheel numpy>=1.25 &&
         rm -rf {package}/build
       CIBW_REPAIR_WHEEL_COMMAND_WINDOWS: >-
         delvewheel repair -w {dest_dir} {wheel}

pyproject.toml

@@ -2,7 +2,7 @@
 build-backend = "setuptools.build_meta"
 requires = [
     "certifi>=2020.06.20",
-    "oldest-supported-numpy",
+    "numpy>=1.25",
     "pybind11>=2.6",
     "setuptools>=42",
     "setuptools_scm>=7",