all: switch from Dependabot to Renovate

.github/dependabot.yml

@@ -1,9 +0,0 @@
-version: 2
-updates:
-- package-ecosystem: cargo
-  directory: "/"
-  schedule:
-    interval: daily
-    time: '11:00'
-    timezone: Asia/Kolkata
-  open-pull-requests-limit: 99

.github/workflows/test.yml

@@ -2,12 +2,13 @@ on:
   push:
     branches:
       - main
+      - renovate/**
     paths-ignore:
       - README.md
   pull_request:
     paths-ignore:
       - README.md
-
+ 
 name: Check Rust code
 jobs:
   check:

renovate.json

@@ -0,0 +1,12 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "packageRules": [
+    {
+      "matchPackagePatterns": ["*"],
+      "automerge": true,
+      "automergeType": "branch"
+    }
+  ]
+}