Clean action runtime project state

.github/workflows/test.yml

@@ -17,11 +17,16 @@ jobs:
         with:
           python-version: "3.13"
 
+      - name: Install uv
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        with:
+          enable-cache: true
+
       - name: Install dependencies
         run: make deps
 
       - name: Run unit tests
-        run: .venv/bin/python -m pytest tests/ -v --ignore=tests/e2e
+        run: uv run pytest tests/ -v --ignore=tests/e2e
 
   e2e:
     runs-on: ubuntu-latest
@@ -33,6 +38,11 @@ jobs:
         with:
           python-version: "3.13"
 
+      - name: Install uv
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        with:
+          enable-cache: true
+
       - name: Install dependencies
         run: make deps
 
@@ -42,4 +52,4 @@ jobs:
       - name: Run Docker-backed e2e tests
         env:
           FLOW_RUN_E2E: "1"
-        run: .venv/bin/python -m pytest tests/e2e/ -v
+        run: uv run pytest tests/e2e/ -v