Update github actions workflow

- Upgrade all action versions
- Dynamically pull default python version from `.python-versoin` file
- Update nox sessions to match new noxfile

Author: Preocts

.github/workflows/python-tests.yml

@@ -1,9 +1,10 @@
 name: "python tests and coverage"
 # Uses:
-# https://github.com/actions/setup-python : a26af69be951a213d495a4c3e4e4022e16d87065
-# https://github.com/actions/checkout : 11bd71901bbe5b1630ceea73d27597364c9af683
-# https://github.com/actions/download-artifact : d3f86a106a0bac45b974a628896c90dbdf5c8093
-# https://github.com/actions/upload-artifact : ea165f8d65b6e75b540449e92b4886f43607fa02
+# https://github.com/actions/setup-python : v5.6.0 a26af69be951a213d495a4c3e4e4022e16d87065
+# https://github.com/actions/checkout : v4.2.2 11bd71901bbe5b1630ceea73d27597364c9af683
+# https://github.com/actions/download-artifact : v5.0.0 634f93cb2916e3fdff6788551b99b062d0335ce0
+# https://github.com/actions/upload-artifact : v4.6.2 ea165f8d65b6e75b540449e92b4886f43607fa02
+# https://github.com/astral-sh/setup-uv : v6.4.3 e92bafb6253dcd438e0484186d7669ea7a8ca1cc
 
 on:
   pull_request:
@@ -13,26 +14,28 @@ on:
     branches:
       - "main"
 
+env:
+  UV_PYTHON_PREFERENCE: "only-system"
+  UV_LOCKED: "true"
+
 jobs:
   settings:
     runs-on: "ubuntu-latest"
     name: "Define workflow settings"
-    outputs:
-      default-python-version: "3.12"
     steps:
       - name: "Define settings"
-        run: ""
+        run: |
+          echo "python_version=$(<.python-version)" >> $GITHUB_OUTPUT
 
   run-tests-and-coverage:
-    name: "Run pytest with coverage."
-    needs: ["settings"]
+    name: "Run nox for tests and coverage"
     runs-on: "${{ matrix.os }}"
     strategy:
       fail-fast: false
       matrix:
         os:
-          - "macos-latest"
-          - "windows-latest"
+          # - "macos-latest"
+          # - "windows-latest"
           - "ubuntu-latest"
         python-version:
           - "3.9"
@@ -52,13 +55,15 @@ jobs:
           python-version: "${{ matrix.python-version }}"
           allow-prereleases: true
 
-      - name: "Install nox"
-        run: |
-          python -m pip install --upgrade nox
+      - name: "Install the latest version of uv"
+        uses: "astral-sh/setup-uv@v6.4.3 e92bafb6253dcd438e0484186d7669ea7a8ca1cc"
+        with:
+          version: "latest"
+          python-version: "${{ matrix.python-version }}"
+          enable-cache: true
 
       - name: "Run tests and coverage via nox"
-        run: |
-          nox --session test -- partial-coverage
+        run: "uv run nox --session test -- partial-coverage no-config"
 
       - name: "Save coverage artifact"
         uses: "actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02"
@@ -69,8 +74,8 @@ jobs:
           include-hidden-files: true
 
   coverage-compile:
-    name: "Compile coverage reports."
-    needs: ["settings", "run-tests-and-coverage"]
+    name: "coverage compile"
+    needs: "run-tests-and-coverage"
     runs-on: "ubuntu-latest"
     steps:
       - name: "Repo checkout"
@@ -79,28 +84,32 @@ jobs:
       - name: "Set up Python"
         uses: "actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065"
         with:
-          python-version: "${{ needs.settings.outputs.default-python-version }}"
+          python-version: ${{ steps.settings.outputs.python_version }}
 
-      - name: "Install nox"
-        run: |
-          python -m pip install --upgrade nox
+      - name: "Install the latest version of uv"
+        uses: "astral-sh/setup-uv@v6.4.3 e92bafb6253dcd438e0484186d7669ea7a8ca1cc"
+        with:
+          version: "latest"
+          python-version: ${{ steps.settings.outputs.python_version }}
+          enable-cache: true
 
       - name: "Download coverage artifacts"
-        uses: "actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093"
+        uses: "actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0"
         with:
           pattern: "coverage-artifact-*"
           merge-multiple: true
 
-      - name: "Compile coverage data, print report"
+      - name: "Compile coverage data"
+        run: "uv run nox --session combine"
+
+      - name: "Post summary to step summary."
         run: |
-          nox --session coverage_combine
           export TOTAL=$(python -c "import json;print(json.load(open('coverage.json'))['totals']['percent_covered_display'])")
           echo "TOTAL=$TOTAL" >> $GITHUB_ENV
           echo "### Total coverage: ${TOTAL}%" >> $GITHUB_STEP_SUMMARY
 
-  linting:
-    name: "Check linting and formatting requirements"
-    needs: ["settings"]
+  linters-and-formatters:
+    name: "linters and formattrs"
     runs-on: "ubuntu-latest"
     steps:
       - name: "Repo checkout"
@@ -109,12 +118,14 @@ jobs:
       - name: "Set up Python"
         uses: "actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065"
         with:
-          python-version: "${{ needs.settings.outputs.default-python-version }}"
+          python-version: ${{ steps.settings.outputs.python_version }}
 
-      - name: "Install nox"
-        run: |
-          python -m pip install --upgrade nox
+      - name: "Install the latest version of uv"
+        uses: "astral-sh/setup-uv@v6.4.3 e92bafb6253dcd438e0484186d7669ea7a8ca1cc"
+        with:
+          version: "latest"
+          python-version: ${{ steps.settings.outputs.python_version }}
+          enable-cache: true
 
-      - name: "Run formatters and linters"
-        run: |
-          nox --session lint
+      - name: "Enforce strict type annotations with mypy"
+        run: "uv run nox --session lint"