Update dependency eslint to v8 (#84)

* Update dependency eslint to v8

* update ci

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Yosuke Ota <otameshiyo23@gmail.com>

.github/workflows/NodeCI.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [10.13.x, 12.x, 13.x, 14.x]
+        node-version: [12.x, 14.x, 16.x]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
@@ -33,6 +33,24 @@ jobs:
       run: npm install
     - name: Test
       run: npm test
+  test-for-node10-13:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [10.13.x, 13.x]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: Install Target Packages
+      run: |+
+          npm i -D eslint@7
+          npx rimraf node_modules
+          npm install
+    - name: Test
+      run: npm test
   test-and-coverage:
     runs-on: ubuntu-latest
     steps:

package.json

@@ -47,7 +47,7 @@
         "@types/node": "^14.0.13",
         "@typescript-eslint/eslint-plugin": "^5.0.0",
         "@typescript-eslint/parser": "^5.0.0",
-        "eslint": "^7.5.0",
+        "eslint": "^8.0.0",
         "eslint-config-prettier": "^8.0.0",
         "eslint-plugin-eslint-comments": "^3.2.0",
         "eslint-plugin-json-schema-validator": "^1.0.0",