working around node 10 and less-loader 9 in the test suite

Author: weaverryan

.github/workflows/node-windows.yml

@@ -19,6 +19,9 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node }}
+    # needed so that Node 10 downloads a compatible less-loader version
+    - name: Clear lock file
+      run: del yarn.lock
     - name: yarn install
       run: yarn install
     - name: run tests

.travis.yml

@@ -26,11 +26,15 @@ matrix:
         - rm yarn.lock
         - yarn
     - os: linux
-      node_js: "10"
+      node_js: "14"
       env: JOB_PART=travis:lint
     - os: linux
       node_js: "10"
       env: JOB_PART=test
+      # needed so that Node 10 downloads a compatible less-loader version
+      install:
+        - rm yarn.lock
+        - yarn
     - os: linux
       node_js: "12"
       env: JOB_PART=test