chore(renovate): add main config file and lint step

.woodpecker/lint.yaml

@@ -0,0 +1,20 @@
+when:
+  event:
+    - push
+    - manual
+    - cron
+
+matrix:
+  RENOVATE_CONFIG_FILE:
+    - config.js
+
+steps:
+  lint:
+    image: renovate/renovate:41
+    pull: true
+    commands:
+      - renovate-config-validator
+    environment:
+      LOG_LEVEL: debug
+      RENOVATE_TOKEN:
+        from_secret: renovate_token

config.js

@@ -0,0 +1,8 @@
+module.export = {
+  platform: "forgejo",
+  endpoint: "https://forge.e5150.fr",
+  gitAuthor: "CIBot <CIBot@noreply.forge.e5150.local>",
+  autoDiscover: true,
+  labels: ["Dependancy 📦️"],
+  extends: ["config:recommended"],
+};