Try to make build faster (#49)

Co-authored-by: Agriya Khetarpal <[email protected]>

Author: krassowski

.github/workflows/build.yml

@@ -48,14 +48,22 @@ jobs:
     - name: Install dependencies
       run: python -m pip install -U "jupyterlab>=4.0.0,<5"
 
+    - name: Restore Playwright browsers cache
+      uses: actions/cache@v4
+      with:
+        path: /home/runner/.cache/ms-playwright
+        key: playwright-browsers-${{ runner.os }}-v1
+        restore-keys: |
+          playwright-browsers-${{ runner.os }}-
+      
     - name: Build the extension
       run: |
         set -eux
         python -m pip install .[test]
 
         jupyter labextension list
         jupyter labextension list 2>&1 | grep -ie "jupytereverywhere.*OK"
-        python -m jupyterlab.browser_check
+        JLAB_BROWSER_TYPE=firefox python -m jupyterlab.browser_check
 
     - name: Package the extension
       run: |