ci: update to work with changing node.js landscape

* don't install -g npm
* do not list dependencies
* drop 10.0.x, as it does not have npm ci support

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [10.0.x, 10.x, 12.0.x, 12.x, 14.0.x, 14.x, 15.x, 16.x]
+        node-version: [10.x, 12.0.x, 12.x, 14.0.x, 14.x, 15.x, 16.x]
         platform:
         - os: ubuntu-latest
           shell: bash
@@ -40,14 +40,8 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache: npm
 
-      - name: Update npm
-        run: npm i --prefer-online -g npm@latest
-
       - name: Install dependencies
         run: npm ci
 
       - name: Run Tap Tests
         run: npm test ${{ matrix.node-version == '10.0.x' && '-- --no-coverage' || '' }}
-
-      - name: List dependencies
-        run: npm ls -a