installing all deps before running mypy

.github/workflows/reviewdog.yml

@@ -4,7 +4,29 @@ jobs:
   mypy:
     name: runner / mypy
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.12"]
     steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Load cached venv
+        id: cached-uv-dependencies
+        uses: actions/cache@v4
+        with:
+          path: /tmp/.uv-cache
+          key: uv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/uv.lock') }}
+      - name: Install dependencies
+        run: |
+          pip install uv==0.4.15
+          uv venv
+          source .venv/bin/activate
+          uv sync
+
       - uses: actions/checkout@v4
       - uses: tsuyoshicho/action-mypy@v4
         with: