ci: add pytest job for minimum dependency versions

Add a new CI job 'pytest-min-deps' that installs the lowest allowed
versions of direct dependencies (as declared in pyproject.toml) using
uv's --resolution=lowest-direct flag, then runs the test suite.

This ensures the declared minimum version bounds are actually compatible
with the library.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: mik-laj

.github/workflows/tests.yaml

@@ -48,6 +48,28 @@ jobs:
           include-hidden-files: true
           path: .coverage
 
+  pytest-min-deps:
+    name: Python ${{ env.DEFAULT_PYTHON }} (minimum dependencies)
+    runs-on: ubuntu-latest
+    steps:
+      - name: ⤵️ Check out code from GitHub
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+      - name: 🏗 Set up Python ${{ env.DEFAULT_PYTHON }}
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        with:
+          python-version: ${{ env.DEFAULT_PYTHON }}
+      - name: 🏗 Install uv
+        run: pipx install uv
+      - name: 🏗 Install dependencies (minimum versions)
+        run: >
+          uv pip install --system --resolution=lowest-direct
+          -e ".[cli]"
+          aioresponses pytest pytest-asyncio pytest-cov covdefaults syrupy
+      - name: 🚀 Run pytest
+        run: pytest tests
+
   coverage:
     runs-on: ubuntu-latest
     needs: pytest