CI(GHActions): `pip` cache

diff --git a/.github/workflows/run-tests.yaml b/.github/workflows/run-tests.yaml
index 1baf0061c82f089f3bd9ffc3be55dc2a0a0dc15a..de8fd928468930be340bb823dcb3abd9acca3c5b 100644 (file)
--- a/.github/workflows/run-tests.yaml
+++ b/.github/workflows/run-tests.yaml
@@ -17,6 +17,12 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          # This path is specific to Linux/Unix
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip
       - name: Install dependencies
         run: |
           python --version