ci: using npm-i in matrix, update steps: Configure npm, Install npm modules, Remove npm modules

Author: Nachoo Mangas

.github/workflows/ci.yml

@@ -49,12 +49,10 @@ jobs:
         - name: Node.js 0.8
           node-version: "0.8"
           npm-i: mocha@2.5.3 supertest@1.1.0
-          npm-rm: nyc
 
         - name: Node.js 0.10
           node-version: "0.10"
           npm-i: mocha@3.5.3 nyc@10.3.2 supertest@2.0.1
-          npm-rm: nyc
 
         - name: Node.js 0.12
           node-version: "0.12"
@@ -166,16 +164,21 @@ jobs:
         dirname "$(nvm which ${{ matrix.node-version }})" >> "$GITHUB_PATH"
 
     - name: Configure npm
-      run: npm config set shrinkwrap false
-
-    - name: Remove npm module(s) ${{ matrix.npm-rm }}
-      run: npm rm --silent --save-dev ${{ matrix.npm-rm }}
-      if: matrix.npm-rm != ''
+      run: |
+        if [[ "$(npm config get package-lock)" == "true" ]]; then
+          npm config set package-lock false
+        else
+          npm config set shrinkwrap false
+        fi
 
     - name: Install npm module(s) ${{ matrix.npm-i }}
       run: npm install --save-dev ${{ matrix.npm-i }}
       if: matrix.npm-i != ''
 
+    - name: Remove npm module(s) ${{ matrix.npm-i }}
+      run: npm rm --silent --save-dev ${{ matrix.npm-i }}
+      if: matrix.npm-i != ''
+
     - name: Setup Node.js version-specific dependencies
       shell: bash
       run: |