specify file type

Signed-off-by: Thomas Poignant <thomas.poignant@gofeatureflag.org>

Author: thomaspoignant

.github/release-please/release-please-config.json

@@ -39,7 +39,10 @@
                 ".github/release-please"
             ],
             "extra-files": [
-                "cmd/relayproxy/helm-charts/relay-proxy/Chart.yaml"
+                {
+                    "type": "helm-chart",
+                    "path": "cmd/relayproxy/helm-charts/relay-proxy/Chart.yaml"
+                }
             ]
         },
         "modules/evaluation": {