use miniforge3 to build

Author: hobu

.github/environment.yml

@@ -4,7 +4,7 @@ channels:
 dependencies:
   - scikit-build-core
   - numpy
-  - pdal
+  - libpdal-core
   - compilers
   - python
   - pip

.github/workflows/build.yml

@@ -24,11 +24,13 @@ jobs:
       fail-fast: true
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: ['3.9', '3.10', '3.11', '3.12']
-        numpy-version: ['1.26', '2.0', '2.1']
+        python-version: ['3.10', '3.11', '3.12', '3.13']
+        numpy-version: ['1.24', '2.1']
         exclude:
-          - python-version: 3.9
-            numpy-version: 2.1
+          - python-version: '3.12'
+            numpy-version: '1.24'
+          - python-version: '3.13'
+            numpy-version: '1.24'
 
     steps:
     - name: Check out
@@ -37,7 +39,7 @@ jobs:
     - name: Setup micromamba
       uses: conda-incubator/setup-miniconda@v3
       with:
-        miniforge-variant: Mambaforge
+        miniforge-variant: Miniforge3
         miniforge-version: latest
         use-mamba: true
         python-version: ${{ matrix.python-version }}