Merge pull request #30 from DataSeer/automatic_docker_build

fix : change concurrency group with 'unstable-dev'

Author: NicolasKieffer

.github/workflows/docker-build-dev.yml

@@ -6,7 +6,7 @@ on:
       - dev
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: unstable-dev
   cancel-in-progress: true
 
 jobs: