ci(renovate): ignore test files (#39)

Excluding the test files `test-compose.yaml`, `test-deployment.yaml`, `test-values-helmfile.yaml`, and `test.Dockerfile` from dependabot updates.

Reviewed-on: t.behrendt/trivy-actions#39
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

renovate.json

@@ -3,5 +3,11 @@
   "extends": [
     "local>t.behrendt/renovate-configs:common",
     "local>t.behrendt/renovate-configs:action"
+  ],
+  "packageRules": [
+    {
+      "matchManagers": ["dockerfile", "kubernetes", "helmfile", "helm-values"],
+      "ignorePaths": ["get-images-from-files/test*"]
+    }
   ]
 }