chore(deps): prevent renovate creating pointless PRs

Signed-off-by: kemitix <kemitix@noreply.kemitix.net>

renovate.json

@@ -1,6 +1,10 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
+  "extends": ["config:recommended"],
-    "config:recommended"
+  "packageRules": [
+    {
+      "matchManagers": ["cargo"],
+      "rangeStrategy": "replace"
+    }
   ]
 }