Update dependencies: c8 to 7.1.2 (work around c8 coverage bug on Node 10).

.github/workflows/nodejs.yml

@@ -24,5 +24,9 @@ jobs:
         node-version: ${{ matrix.node-version }}
     - name: Install Dependencies
       run: npm install --no-package-lock
-    - name: Run Tests
+    - name: Run All Validations
+      if: ${{ matrix.node-version != '10.x' }}
       run: npm run ci
+    - name: Run Tests Only
+      if: ${{ matrix.node-version == '10.x' }}
+      run: npm run test

package.json

@@ -39,7 +39,7 @@
   "devDependencies": {
     "@types/node": "~13.11.1",
     "browserify": "~16.5.1",
-    "c8": "7.1.1",
+    "c8": "~7.1.2",
     "cpy-cli": "~3.1.0",
     "eslint": "~6.8.0",
     "eslint-plugin-jsdoc": "~22.1.0",