increase ruff's target python version to 3.12 (up from the default of 3.10 and same as our minimum)

Author: wlav

.github/workflows/python-check.yaml

@@ -89,7 +89,7 @@ jobs:
 
         echo "➡️ Checking Python code with ruff..."
         echo "::group::Running ruff check"
-        if ! ruff check; then
+        if ! ruff check --target-version py312; then
           failed=1
           echo "::endgroup::"
           echo "::error:: Ruff check failed."

.github/workflows/python-fix.yaml

@@ -56,7 +56,7 @@ jobs:
           echo "Fixing Python format with ruff"
           ruff format . || true
           echo "Fixing Python linter issues with ruff"
-          ruff check --fix . || true
+          ruff check --fix --target-version py312 . || true
 
       - name: Handle fix commit
         uses: ./phlex-src/.github/actions/handle-fix-commit