add config and drone

.drone.yml

@@ -0,0 +1,32 @@
+---
+kind: pipeline
+type: docker
+name: renovate
+
+trigger:
+  event:
+    - cron
+    - push
+    - custom
+
+environment:
+  LOG_LEVEL: debug
+
+steps:
+  - name: renovate - validate config
+    image: renovate/renovate:37.127
+    # https://github.com/renovatebot/renovate/discussions/15049
+    commands:
+      - unset GIT_COMMITTER_NAME GIT_COMMITTER_EMAIL GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
+      - renovate-config-validator
+
+  - name: renovate
+    image: renovate/renovate:37.127
+    # https://github.com/renovatebot/renovate/discussions/15049
+    commands:
+      - unset GIT_COMMITTER_NAME GIT_COMMITTER_EMAIL GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
+      - renovate
+
+    environment:
+      RENOVATE_TOKEN:
+        from_secret: RENOVATE_TOKEN

config.js

@@ -0,0 +1,10 @@
+module.exports = {
+  platform: "gitea",
+  endpoint: "https://git.opytex.org/api/v1/",
+  autodiscover: true,
+  onboardingConfig: {
+    extends: ["renovate/renovate-config"],
+  },
+  optimizeForDisabled: true,
+  persistRepoData: true,
+};