chore: Bring back lint cache. (#713)

Include `run-mypy` fix from mozilla-ai/any-llm@fdd6725

Co-authored-by: Nathan Brake <nathan@mozilla.ai>
Co-authored-by: Nathan Brake <33383515+njbrake@users.noreply.github.com>

Author: daavoo

.github/workflows/lint.yaml

@@ -24,5 +24,19 @@ jobs:
       - name: Install pre-commit
         run: uv sync --group lint
 
+      - uses: actions/cache@v4
+        with:
+          path: .mypy_cache
+          key: ${{ runner.os }}-mypy-${{ hashFiles('pyproject.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-mypy-
+
+      - uses: actions/cache@v4
+        with:
+          path: ~/.cache/pre-commit
+          key: ${{ runner.os }}-pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pre-commit-
+
       - name: pre-commit
         run: uv run pre-commit run --all-files --verbose

scripts/run-mypy.sh

@@ -8,7 +8,7 @@ cd "$(dirname "$0")/.."
 
 # Install the dependencies into the mypy env.
 # Note that this can take seconds to run.
-python -m pip install -e '.[all,a2a,any_llm]' --quiet
+python -m pip install -U -e '.[all,a2a,any_llm]' --quiet
 
 # Run on all files.
 python -m mypy src/