allow_failure needs to be a boolean value

ci/generate_host_pipeline.py

@@ -68,7 +68,7 @@ def generate_build_job(host, gpu_type, benchmarks_to_build, *, extra_modules="")
             'before_script': [
                 *load_script("!reference [.export_variables, before_script]")
             ],
-            'allow_failure': 'false'
+            'allow_failure': False
         }
     }