removing some CI env vars and updating pyproject.toml for python>=3.9

.github/workflows/build.yml

@@ -140,8 +140,6 @@ jobs:
 
       - name: Build wheels
         env:
-          CIBW_BUILD: "cp3${{env.PYTHON_SUBVERSION}}-*"
-          CIBW_SKIP: "*-win32 *-manylinux_i686 *-musllinux*"
           CIBW_ARCHS_MACOS: x86_64 universal2
           CIBW_ARCHS_LINUX: auto aarch64
         uses: pypa/[email protected]

pyproject.toml

@@ -1,8 +1,7 @@
 [build-system]
 build-backend = 'mesonpy'
 requires = [
-  "numpy >= 2.0.0; python_version > '3.8'",
-  "oldest-supported-numpy; python_version <= '3.8'",
+  "numpy >= 2.0.0,
   "meson-python"
 ]
 
@@ -11,7 +10,7 @@ name = 'scs'
 version = "3.2.7"
 description = 'Splitting conic solver'
 readme = 'README.md'
-requires-python = '>=3.7'
+requires-python = '>=3.9'
 license = {file = 'LICENSE'}
 authors = [
   {name = "Brendan O'Donoghue", email = "[email protected]"}]