Merge pull request #846 from finos/renovate/alpine-3.x

chore(deps): update alpine docker tag to v3.21

Author: JamieSlome

experimental/license-inventory/docker-compose.yaml

@@ -1,6 +1,6 @@
 services:
   init:
-    image: alpine:3.20
+    image: alpine:3.21
     init: true
     volumes:
       - mongo-logs:/var/log-mongo