Update GitHub Actions

Author: renovate[bot]

.github/workflows/ci.yml

@@ -7,9 +7,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up JDK 1.8
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v4
         with:
           java-version: 1.8
       - name: Build
@@ -18,8 +18,8 @@ jobs:
   renovate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: 🧼 lint renovate config # Validates changes to renovate.json config file
-        uses: suzuki-shunsuke/github-action-renovate-config-validator@v0.1.2
+        uses: suzuki-shunsuke/github-action-renovate-config-validator@v1.0.0
         with:
           config_file_path: 'renovate.json'