chore: fix min release age (#5382)

renovate.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": ["config:base", "docker:pinDigests"],
-  "minimumReleaseAge": "5",
+  "minimumReleaseAge": "5 days",
   "packageRules": [
     {
       "matchFileNames": ["cli/**"],