chore(deps): update crazy-max/ghaction-docker-meta action to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
           path: onyxia-api/target
       - name: Docker meta
         id: docker_meta
-        uses: crazy-max/ghaction-docker-meta@v5.10.0
+        uses: crazy-max/ghaction-docker-meta@v6.0.0
         with:
           images: inseefrlab/onyxia-api # list of Docker images to use as base name for tags
       - name: Set up QEMU