adjust matrix

Author: hobu

.github/workflows/build.yml

@@ -25,10 +25,12 @@ jobs:
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
         python-version: ['3.10', '3.11', '3.12', '3.13']
-        numpy-version: ['1.24', '2.0']
+        numpy-version: ['1.2', '2.1']
         exclude:
           - python-version: '3.12'
-            numpy-version: '1.24'
+            numpy-version: '1.2'
+          - python-version: '3.13'
+            numpy-version: '1.2'
 
     steps:
     - name: Check out python-pdal