Merge pull request #2754 from swt2c/python3.14_ci

Add CI build for Python 3.14 (dev)

.github/workflows/ci-build.yml

@@ -108,7 +108,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-22.04, windows-2022, macos-13, macos-14 ]
-        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13' ]
+        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13', '3.14' ]
         architecture: [ 'x86', 'x64', 'arm64' ]
         # Exclude x86 configs on non-Windows OSs
         exclude:
@@ -151,11 +151,15 @@ jobs:
               short_name=macos
               echo "CIBW_BUILD=cp$(echo ${{ matrix.python-version }} | sed 's/\.//')-macosx_$(uname -m)" >> "$GITHUB_ENV"
               echo "CIBW_BUILD_VERBOSITY=1" >> "$GITHUB_ENV"
+              echo "CIBW_BUILD_FRONTEND=pip" >> "$GITHUB_ENV"
+              echo "CIBW_ENABLE=cpython-prerelease" >> "$GITHUB_ENV"
               echo "MACOSX_DEPLOYMENT_TARGET=10.10" >> "$GITHUB_ENV"
           elif [ ${{ matrix.os }} == macos-14 ]; then
               short_name=macos
               echo "CIBW_BUILD=cp$(echo ${{ matrix.python-version }} | sed 's/\.//')-macosx_$(uname -m)" >> "$GITHUB_ENV"
               echo "CIBW_BUILD_VERBOSITY=1" >> "$GITHUB_ENV"
+              echo "CIBW_BUILD_FRONTEND=pip" >> "$GITHUB_ENV"
+              echo "CIBW_ENABLE=cpython-prerelease" >> "$GITHUB_ENV"
               echo "MACOSX_DEPLOYMENT_TARGET=11.0" >> "$GITHUB_ENV"
           elif [ ${{ matrix.os }} == windows-2022 ]; then
               if [ ${{ matrix.architecture }} == x64 ]; then
@@ -185,6 +189,7 @@ jobs:
           python-version: '${{ matrix.python-version }}'
           architecture: '${{ matrix.architecture }}'
           cache: 'pip'
+          allow-prereleases: true
 
       - name: Install Python dependencies
         run: |