Set oldest macOS test tompl35 (#250)

Author: ConorMacBride

.github/workflows/test_and_publish.yml

@@ -47,7 +47,7 @@ jobs:
         - linux: py39-test-mpl33-pytest62
         # Test oldest non-SPEC 0 configurations
         - linux: py39-test-mpl33
-        - macos: py39-test-mpl33
+        - macos: py39-test-mpl35
         - windows: py39-test-mpl33
       coverage: 'codecov'
 

tox.ini

@@ -31,6 +31,7 @@ deps =
     mpl33: numpy<2
     mpl34: matplotlib==3.4.*
     mpl35: matplotlib==3.5.*
+    mpl35: numpy<2
     mpl36: matplotlib==3.6.*
     mpl37: matplotlib==3.7.*
     mpl38: matplotlib==3.8.*