fix: cache all UI paths for cypress (#3454)

* fix: cache all UI paths for cypress

* Update pull_request.yml

.github/workflows/pull_request.yml

@@ -1,6 +1,9 @@
 name: Continuous Integration
 
-on: [pull_request_target]
+on:
+  pull_request_target:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
   server_tests:
@@ -98,10 +101,19 @@ jobs:
     - name: Build OpenRefine
       run: ./refine build
 
+    - name: Setup Node
+      uses: actions/setup-node@v2
+      with:
+        node-version: '12'
+
     - name: Restore Tests dependency cache
       uses: actions/cache@v2.1.3
       with:
-          path: '**/node_modules'
+          path: |
+            ~/cache
+            ~/.cache
+            **/node_modules
+            !~/cache/exclude
           key: ${{ runner.os }}-modules-${{ hashFiles('**/yarn.lock') }}
           restore-keys: |
               ${{ runner.os }}-yarn
@@ -109,6 +121,8 @@ jobs:
     - name: Install test dependencies
       run: |
           cd ./main/tests/cypress
+          npm cache clean --force
+          npm i -g yarn
           yarn install
 
     - name: Test with Cypress on ${{ matrix.browser }}