Update renovate.json5

Author: emdneto

renovate.json5

@@ -2,18 +2,7 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:best-practices",
-    "helpers:pinGitHubActionDigestsToSemver"
-  ],
-  "packageRules": [
-    {
-      "matchManagers": ["pip_requirements"],
-      "matchFileNames": ["**/*requirements*.txt"],
-      "enabled": false,
-      "groupName": "pip dependencies",
-      "groupSlug": "pip"
-    },
-  ],
-  "labels": [
-    "dependencies"
+    "helpers:pinGitHubActionDigestsToSemver",
+    "security:only-security-updates"
   ]
 }