ci(renovate): sort managers alphabetically

Author: scop

.github/renovate.json

@@ -14,14 +14,14 @@
   ],
   "semanticCommits": "enabled",
   "commitMessageTopic": "{{depName}}",
+  "dockerfile": {
+    "enabled": false
+  },
   "pip_requirements": {
     "fileMatch": [
       "(^|/)requirements[\\w-]*\\.txt$"
     ]
   },
-  "dockerfile": {
-    "enabled": false
-  },
   "regexManagers": [
     {
       "fileMatch": ["^\\.pre-commit-config\\.yaml$"],