chore(deps): update actions/checkout action to v4

Reviewed-on: #1

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       #- name: validate gradle wrapper
       #  uses: gradle/wrapper-validation-action@v1
       - name: setup jdk ${{ matrix.java }}

renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "local>Fascinated/renovate-config"
+  ]
+}