Merge remote-tracking branch 'origin/masenf/ci-3.14' into masenf/python3.14-compat

Author: masenf

.github/actions/setup_build_env/action.yml

@@ -42,3 +42,5 @@ runs:
       if: inputs.run-uv-sync == 'true'
       run: uv sync
       shell: bash
+      env:
+        PYO3_USE_ABI3_FORWARD_COMPATIBILITY: 1

.github/workflows/integration_tests.yml

@@ -43,7 +43,7 @@ jobs:
       matrix:
         # Show OS combos first in GUI
         os: [ubuntu-latest, windows-latest]
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/unit_tests.yml

@@ -28,7 +28,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     runs-on: ${{ matrix.os }}
 
     # Service containers to run with `runner-job`