react-scriptsのやつと競合（？）していた

Author: hotate29

.github/workflows/ci.yml

@@ -83,9 +83,17 @@ jobs:
           path: |
             ~/.cache/Cypress
             ./atcoder-problems-frontend/node_modules
-            .eslintcache
           key: ${{ runner.os }}-cargo-${{ hashFiles('atcoder-problems-frontend/yarn.lock') }}
 
+      - name: Cache eslint
+        uses: actions/cache@v3.2.3
+        with:
+          path: |
+            ./atcoder-problems-frontend/.eslintcache-ci
+            ./atcoder-problems-frontend/.eslintcache
+          key: eslint-${{github.ref_name}}-${{github.sha}}
+          restore-keys: eslint-${{github.ref_name}}-
+
       - name: Install dependencies
         run: yarn
 
@@ -99,7 +107,7 @@ jobs:
       - name: test
         run: yarn test
       - name: lint
-        run: yarn lint --cache-strategy content
+        run: yarn lint --cache-strategy content --cache-location .eslintcache-ci
       - name: Integration test
         run: |
           yarn prepare-ci