TST: test against CPython 3.11.0 (instead of latest 3.11.x)

.github/workflows/ci.yml

@@ -47,12 +47,6 @@ jobs:
         - os: windows-latest
           python-version: '3.13'
 
-        # test with minimal requirements
-        - marker: minimal
-          os: ubuntu-20.04
-          python-version: '3.11'
-          install-args: --resolution=lowest-direct
-
         # test GPGI_PY_LIB
         - marker: PY_LIB
           os: ubuntu-latest
@@ -73,7 +67,7 @@ jobs:
       shell: bash # for windows-compat (using `\` as a line continuation)
       # TODO: add --no-editable
       run: |
-        uv run --frozen --group covcheck ${{ matrix.install-args }} \
+        uv run --frozen --group covcheck \
           coverage run --parallel-mode -m pytest --color=yes -ra
 
     - name: Upload coverage data
@@ -87,6 +81,21 @@ jobs:
         if-no-files-found: ignore
         include-hidden-files: true
 
+  minimal-env:
+    name: Minimal requirements
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - uses: actions/setup-python@v5
+      with:
+        # setup-uv doesn't have this exact version of Python
+        python-version: 3.11.0
+    - uses: astral-sh/setup-uv@38f3f104447c67c051c4a08e39b64a148898af3a # v4.2.0
+    - name: Test
+      run: |
+        uv run --python-preference=only-system --frozen --no-editable --group test \
+          pytest --color=yes -ra
+
   image-tests:
     name: Image tests
     runs-on: ubuntu-latest