Update docker/bake-action action to v6.8.0

Update docker/bake-action from 6.7.0 to 6.8.0

Change-type: patch

Author: balena-renovate[bot]

.github/workflows/flowzone.yml

@@ -3313,7 +3313,7 @@ jobs:
       # https://github.com/docker/bake-action
       - name: Docker bake
         id: docker_bake
-        uses: docker/bake-action@212c36739681a6271d58dcfe0d001d2ad13f8e75 # v6.7.0
+        uses: docker/bake-action@37816e747588cb137173af99ab33873600c46ea8 # v6.8.0
         with:
           # Use path context as v6 defaults to git context
           # https://github.com/docker/bake-action/releases/tag/v6.0.0