fix: tag for dev version

logilab/cubicweb:dev instead of dev

build.py

@@ -40,7 +40,7 @@ class CubicWebImage:
     @property
     def tag(self):
         if self.package_version == "dev":
-            return "dev"
+            return f"{REGISTRY}:dev"
         return f"{REGISTRY}:{self.base_docker_image}-{self.cubicweb_version}"
 
     @property
@@ -50,7 +50,7 @@ class CubicWebImage:
     @property
     def major_tag(self):
         if self.package_version == "dev":
-            return "dev"
+            return f"{REGISTRY}:dev"
         return f"{REGISTRY}:{self.base_docker_image}-{self.cubicweb_major_version}"