chore: use eslint v9 (#333)

* chore: use eslint v9

* fix

Author: ota-meshi

.devcontainer/devcontainer.json

@@ -1,31 +1,27 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the
 // README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
 {
-	"name": "Node.js & TypeScript",
-	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/typescript-node:1-20-bullseye",
+  "name": "Node.js & TypeScript",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "image": "mcr.microsoft.com/devcontainers/typescript-node:1-20-bullseye",
 
-	// Features to add to the dev container. More info: https://containers.dev/features.
-	// "features": {},
+  // Features to add to the dev container. More info: https://containers.dev/features.
+  // "features": {},
 
-	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	// "forwardPorts": [],
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
 
-	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": "yarn install",
+  // Use 'postCreateCommand' to run commands after the container is created.
+  "postCreateCommand": "yarn install",
 
-	// Configure tool-specific properties.
-	"customizations": {
-		// Configure properties specific to VS Code.
-		"vscode": {
-			// Set *default* container specific settings.json values on container create.
-			"settings": {},
-			"extensions": [
-				"dbaeumer.vscode-eslint"
-			]
-		}
-	}
+  // Configure tool-specific properties.
+  "customizations": {
+    // Configure properties specific to VS Code.
+    "vscode": {
+      "extensions": ["dbaeumer.vscode-eslint"]
+    }
+  }
 
-	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
-	// "remoteUser": "root"
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
 }

.eslintignore

@@ -21,16 +21,12 @@ jobs:
   test:
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, 19.x]
+        node-version: [18.x, 20.x]
         os: [ubuntu-latest]
         include:
-          - node: 18.x
+          - node: 22.x
             os: windows-latest
-          - node: 18.x
-            os: macos-latest
-          - node: 14.x
-            os: windows-latest
-          - node: 14.x
+          - node: 22.x
             os: macos-latest
     runs-on: ${{ matrix.os }}
     steps:
@@ -43,14 +39,20 @@ jobs:
         run: yarn install --ignore-engines
       - name: Test
         run: yarn test
-  test-with-eslint9:
+  test-with-eslint8:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [14.x, 16.x]
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
       - name: Install Target Packages
         run: |+
-          yarn add -D eslint@^9.0.0-0 --ignore-engines
+          yarn add -D eslint@8 --ignore-engines
           yarn --ignore-engines
       - name: Test
         run: yarn test

.eslintrc.js

@@ -1 +1 @@
-{}
+{}