Sync workflow to workflow-sandbox latest, use conda-forge for build

Build from the base environment (with its default Python version,
whatever version that is) targeting the build target Python version

This allows building for with newer Python versions sooner, since
conda-build may not yet be available for the newer Python versions, but
is not actually needed in the build environment.

Drop Windows 32-bit as miniforge doesn't exist

.github/workflows/build-and-release.yaml

@@ -4,10 +4,8 @@ on:
   push:
     branches:
       - master
-  create:
     tags:
       - 'v[0-9]+.[0-9]+.[0-9]+*'
-  pull_request:
 
 env:
   SCM_LOCAL_SCHEME: no-local-version
@@ -20,67 +18,69 @@ jobs:
     strategy:
       matrix:
         include:
+          - { os: ubuntu-latest,   python: '3.13',  arch: x64 }
           - { os: ubuntu-latest,   python: '3.12',  arch: x64 }
           - { os: ubuntu-latest,   python: '3.11',  arch: x64 }
           - { os: ubuntu-latest,   python: '3.10',  arch: x64 }
-          - { os: ubuntu-latest,   python: '3.9',  arch: x64 }
-          - { os: ubuntu-latest,   python: '3.8',  arch: x64 }
+          - { os: ubuntu-latest,   python: '3.9',   arch: x64 }
+          - { os: ubuntu-latest,   python: '3.8',   arch: x64 }
 
+          - { os: macos-13,        python: '3.13',  arch: x64 }
           - { os: macos-13,        python: '3.12',  arch: x64 }
           - { os: macos-13,        python: '3.11',  arch: x64 }
           - { os: macos-13,        python: '3.10',  arch: x64 }
-          - { os: macos-13,        python: '3.9',  arch: x64 }
-          - { os: macos-13,        python: '3.8',  arch: x64 }
+          - { os: macos-13,        python: '3.9',   arch: x64 }
+          - { os: macos-13,        python: '3.8',   arch: x64 }
 
+          - { os: macos-latest,    python: '3.13',  arch: arm64 }
           - { os: macos-latest,    python: '3.12',  arch: arm64 }
           - { os: macos-latest,    python: '3.11',  arch: arm64 }
           - { os: macos-latest,    python: '3.10',  arch: arm64 }
-          - { os: macos-latest,    python: '3.9',  arch: arm64 }
+          - { os: macos-latest,    python: '3.9',   arch: arm64 }
 
+          - { os: windows-latest,  python: '3.13',  arch: x64 }
           - { os: windows-latest,  python: '3.12',  arch: x64 }
           - { os: windows-latest,  python: '3.11',  arch: x64 }
           - { os: windows-latest,  python: '3.10',  arch: x64 }
-          - { os: windows-latest,  python: '3.9',  arch: x64 }
-          - { os: windows-latest,  python: '3.8',  arch: x64 }
+          - { os: windows-latest,  python: '3.9',   arch: x64 }
+          - { os: windows-latest,  python: '3.8',   arch: x64 }
 
-          # - { os: windows-latest,  python: '3.11',  arch: x86 } # Not (yet?) available
-          - { os: windows-latest,  python: '3.10',  arch: x86 }
-          - { os: windows-latest,  python: '3.9',  arch: x86 }
-          - { os: windows-latest,  python: '3.8',  arch: x86 }
 
-    if: github.repository == 'chrisjbillington/setuptools-conda' && (github.event_name != 'create' || github.event.ref_type != 'branch')
+    if: github.repository == 'chrisjbillington/setuptools-conda'
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Ignore Tags
-        if: github.event.ref_type != 'tag'
+        if: github.event.ref_type == 'push' && contains(github.ref, '/tags')
         run: git tag -d $(git tag --points-at HEAD)
 
       - name: Install Miniconda
         uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true
-          python-version: ${{ matrix.python }}
           architecture: ${{ matrix.arch }}
-          miniconda-version: "latest"
+          miniforge-version: "latest"
+          conda-remove-defaults: true
+          auto-activate-base: true
+          activate-environment: ""
 
       - name: Conda package (Unix)
         if: runner.os != 'Windows'
         shell: bash -l {0}
-        run: python -m setuptools_conda build .
+        run: python -m setuptools_conda --pythons=${{ matrix.python }} build .
 
       - name: Conda Package (Windows)
         if: runner.os == 'Windows'
         shell: cmd /C CALL {0}
-        run: python -m setuptools_conda build .
+        run: python -m setuptools_conda --pythons=${{ matrix.python }} build .
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: conda_packages
+          name: conda_packages-${{ matrix.os }}-py${{ matrix.python }}-${{ matrix.arch }}
           path: ./conda_packages
 
   release:
@@ -90,22 +90,27 @@ jobs:
     needs: build
     steps:
       - name: Download Artifact
-        uses: actions/download-artifact@v4.1.7
+        uses: actions/download-artifact@v4
         with:
           name: conda_packages
           path: ./conda_packages
+          merge-multiple: true
 
       - name: Install Miniconda
-        uses: conda-incubator/setup-miniconda@v2
+        uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true
+          miniforge-version: "latest"
+          conda-remove-defaults: true
+          auto-activate-base: true
+          activate-environment: ""
 
       - name: Install Anaconda cloud client
         shell: bash -l {0}
         run: conda install anaconda-client
 
       - name: Publish to Anaconda test label
-        if: github.event.ref_type != 'tag'
+        if: contains(github.ref, '/tags')
         shell: bash -l {0}
         run: |
           anaconda \
@@ -117,7 +122,7 @@ jobs:
 
       - name: Publish to Anaconda main label
         shell: bash -l {0}
-        if: github.event.ref_type == 'tag'
+        if: contains(github.ref, '/tags')
         run: |
           anaconda \
             --token ${{ secrets.ANACONDA_API_TOKEN }} \