chore(ci): Restore x86 for Windows, will just drop mpl in tox

Author: effigies

.github/workflows/test.yml

@@ -114,7 +114,7 @@ jobs:
       matrix:
         os: ['ubuntu-latest', 'windows-latest', 'macos-13', 'macos-latest']
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.13t"]
-        architecture: ['x64', 'arm64']
+        architecture: ['x86', 'x64', 'arm64']
         dependencies: ['full', 'pre']
         include:
           # Basic dependencies only
@@ -127,15 +127,6 @@ jobs:
             python-version: "3.9"
             architecture: 'x64'
             dependencies: 'min'
-          # Only numpy of the scipy stack still supports win32
-          - os: windows-latest
-            python-version: "3.9"
-            architecture: 'x86'
-            dependencies: 'none'
-          - os: windows-latest
-            python-version: "3.13"
-            architecture: 'x86'
-            dependencies: 'none'
         exclude:
           # Use ubuntu-latest to cover the whole range of Python. For Windows
           # and OSX, checking oldest and newest should be sufficient.
@@ -159,6 +150,13 @@ jobs:
             python-version: "3.12"
 
           ## Unavailable architectures
+          # x86 is available for Windows
+          - os: ubuntu-latest
+            architecture: x86
+          - os: macos-latest
+            architecture: x86
+          - os: macos-13
+            architecture: x86
           # arm64 is available for macos-14+
           - os: ubuntu-latest
             architecture: arm64