chore: update ci

Author: naokie

.github/workflows/ja.yaml

@@ -1,29 +1,18 @@
-name: Lint
+name: textlint
 
 on: [push]
 
-defaults:
-  run:
-    shell: bash
-
 jobs:
   textlint:
 
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [12.x]
-
     steps:
-    - uses: actions/checkout@v1
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
       with:
-        node-version: ${{ matrix.node-version }}
-    - name: Lint
-      run: |
-        yarn
-        yarn lint
-      env:
-        CI: true
+        node-version: '14'
+    - name: Install deps
+      run: yarn
+    - name: Run textlint
+      run: yarn lint