chore(deps): update ruby:3.4-alpine docker digest to 8109686 (#260)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docker-compose.yml

@@ -1,7 +1,7 @@
 version: '2'
 services:
   ruby:
-    image: ruby:3.4-alpine@sha256:5bdfa2312f3f0bc9bd077e954c943652155a093db228af978873ff92389300d3
+    image: ruby:3.4-alpine@sha256:81096866ac15f906adc79867da3ed97a2aa271d6149363e216a174701345c53b
     command: rake
     working_dir: /src
     volumes: