Use uv in github workflows

Author: larsevj

.github/workflows/codecov.yml

@@ -5,6 +5,13 @@ on:
   push:
     branches: [main]
 
+env:
+  UV_SYSTEM_PYTHON: 1
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
 jobs:
   coverage:
     runs-on: ${{ matrix.os }}
@@ -20,11 +27,16 @@ jobs:
       with:
         python-version: 3.12
 
+    - name: Install uv
+      uses: astral-sh/setup-uv@v7
+      with:
+        enable-cache: true
+        python-version: ${{ matrix.python-version }}
+
     - name: Install pyscal and test dependencies
       run: |
-        pip install pip -U
-        pip install .[tests]
-        pip install opm  # (extra package for more tests)
+        uv pip install .[tests]
+        uv pip install opm  # (extra package for more tests)
 
     - name: Generate coverage report
       run: |

.github/workflows/pyscal.yml

@@ -17,6 +17,11 @@ on:
 env:
   # Default python version to be use to create docs
   DEFAULT_PYTHON_VERSION: "3.12"
+  UV_SYSTEM_PYTHON: 1
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 jobs:
   pyscal:
@@ -42,21 +47,27 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+          python-version: ${{ matrix.python-version }}
+
       - name: Install pyscal with dependencies
         if: ${{ always() }}
         run: |
-          pip install --upgrade pip
-          pip install ".[tests, docs]"
+          uv pip install --upgrade pip
+          uv pip install ".[tests, docs]"
 
       - name: Install opm
         if: matrix.python-version == '3.13' and matrix.os == 'ubuntu-latest'
         run: |
           # for extra tests
-          pip install opm
+          uv pip install opm
 
       - name: List all installed packages
         if: ${{ always() }}
-        run: pip freeze
+        run: uv pip freeze
 
       - name: Ruff check
         if: ${{ always() }}