Update dependabot configurations (#1153)

Co-authored-by: serverless-qe <[email protected]>

Author: serverless-qe

renovate.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "enabledManagers": ["tekton"],
+  "ignorePaths": [
+    ".konflux-release/**",
+    "third_party/**",
+    "vendor/**",
+    "**/images-rekt.yaml"
+  ]
+}