Fix broken CI (#242)

* Fix broken CI

* update

Author: ota-meshi

.eslintrc.js

@@ -14,7 +14,8 @@ module.exports = {
   ],
   plugins: ['@typescript-eslint'],
   parserOptions: {
-    ecmaVersion: 2015
+    ecmaVersion: 2020,
+    parser: 'espree'
   },
   rules: {
     'object-shorthand': 'error',

.github/workflows/test.yml

@@ -52,7 +52,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        eslint: [5, 6, ^8.0.0-0]
+        eslint: [5, 6, 8]
         node: [14]
     steps:
       - name: Checkout
@@ -63,5 +63,8 @@ jobs:
           node-version: ${{ matrix.node }}
       - name: Install
         run: yarn add eslint@${{ matrix.eslint }}
+      - name: Install ts-eslint v5
+        run: yarn add @typescript-eslint/parser@5 @typescript-eslint/eslint-plugin@5
+        if: matrix.eslint == 8
       - name: Test
         run: yarn test