update build matrix

Author: FynnBe

.github/workflows/build.yaml

@@ -74,18 +74,31 @@ jobs:
             run-expensive-tests: true
             report-coverage: true
             save-cache: true
+            numpy-version: 1
+          - python-version: '3.9'
+            conda-env: full
+            spec: conda
+            numpy-version: 2
           - python-version: '3.10'
             conda-env: dev
             spec: conda
+            numpy-version: 1
           - python-version: '3.11'
             conda-env: dev
             spec: main
+            numpy-version: 2
           - python-version: '3.12'
             conda-env: dev
             spec: conda
+            numpy-version: 1
           - python-version: '3.13'
             conda-env: dev
             spec: main
+            numpy-version: 2
+          - python-version: '3.14'
+            conda-env: dev
+            spec: conda
+            numpy-version: 2
 
     steps:
     - uses: actions/checkout@v4