fix: pin Node 18 in CI workflows for eslint compatibility

Author: Kuchizu

.github/workflows/cypress.yml

@@ -10,10 +10,10 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v3
         with:
           node-version: 18
-      - uses: actions/checkout@v4
       - uses: cypress-io/github-action@v6
         with:
           config: video=false

.github/workflows/eslint.yml

@@ -9,6 +9,10 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
       - name: Cache dependencies
         uses: actions/cache@v4
         with: