chore: Update renovate config, limit cargo updates

.editorconfig

@@ -26,3 +26,7 @@ max_line_length = 98
 [*.yml]
 indent_size = 2
 indent_style = space
+
+[*.json]
+indent_size = 4
+indent_style = space

renovate.json

@@ -1,21 +1,14 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ],
+    "extends": ["config:recommended"],
     "lockFileMaintenance": {
         "enabled": true,
-    "schedule": [
-      "at any time"
-    ]
+        "schedule": ["at any time"]
     },
     "nix": {
         "enabled": true
     },
-  "labels": [
-    "Dependencies",
-    "Dependencies/Renovate"
-  ],
+    "labels": ["Dependencies", "Dependencies/Renovate"],
     "ignoreDeps": [
         "tikv-jemallocator",
         "tikv-jemalloc-sys",
@@ -27,11 +20,11 @@
     ],
     "github-actions": {
         "enabled": true,
-    "fileMatch": [
-      "(^|/)\\.forgejo/workflows/[^/]+\\.ya?ml$",
-      "(^|/)\\.forgejo/actions/[^/]+/action\\.ya?ml$",
-      "(^|/)\\.github/workflows/[^/]+\\.ya?ml$",
-      "(^|/)\\.github/actions/[^/]+/action\\.ya?ml$"
+        "managerFilePatterns": [
+            "/(^|/)\\.forgejo/workflows/[^/]+\\.ya?ml$/",
+            "/(^|/)\\.forgejo/actions/[^/]+/action\\.ya?ml$/",
+            "/(^|/)\\.github/workflows/[^/]+\\.ya?ml$/",
+            "/(^|/)\\.github/actions/[^/]+/action\\.ya?ml$/"
         ]
     },
     "packageRules": [
@@ -43,7 +36,7 @@
         },
         {
             "description": "Group Rust toolchain updates into a single PR",
-      "matchManagers": ["regex"],
+            "matchManagers": ["custom.regex"],
             "matchPackageNames": ["rust", "rustc", "cargo"],
             "groupName": "rust-toolchain"
         },
@@ -57,6 +50,10 @@
             "matchManagers": ["cargo"],
             "matchUpdateTypes": ["patch"],
             "groupName": "rust-patch-updates"
+        },
+        {
+            "matchManagers": ["cargo"],
+            "prConcurrentLimit": 5
         }
     ]
 }