chore: tweak renovate settings

Author: bahmutov

Diff for: renovate.json

@@ -4,7 +4,7 @@
   ],
   "automerge": true,
   "commitMessage": "{{semanticPrefix}}Update {{depName}} to {{newVersion}} 🌟",
-  "prTitle": "{{semanticPrefix}}{{#if isPin}}Pin{{else}}Update{{/if}} dependency {{depName}} to version {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}{{newVersionMajor}}.x{{else}}{{newVersion}}{{/if}}{{/if}} 🌟",
+  "prTitle": "{{semanticPrefix}}{{#if isPin}}Pin{{else}}Update{{/if}} dependency {{depName}} to version {{newVersion}} 🌟",
   "major": {
     "automerge": false
   },
@@ -17,5 +17,15 @@
   "schedule": [
     "after 10pm and before 5am on every weekday",
     "every weekend"
+  ],
+  "lockFileMaintenance": {
+    "enabled": true
+  },
+  "separatePatchReleases": true,
+  "separateMultipleMajor": true,
+  "masterIssue": true,
+  "labels": [
+    "type: dependencies",
+    "renovate"
   ]
-}
+}