Convert release props to snake_case

This commit ensures all props are properly converted to snake_case
before being submitted to the API.

app/assets/javascripts/releases/stores/modules/detail/actions.js

@@ -57,13 +57,18 @@ export const updateRelease = ({ dispatch, state, getters }) => {
   const { release } = state;
   const milestones = release.milestones ? release.milestones.map(milestone => milestone.title) : [];
 
-  return (
-    api
-      .updateRelease(state.projectId, state.tagName, {
+  const updatedRelease = convertObjectPropsToSnakeCase(
+    {
       name: release.name,
       description: release.description,
       milestones,
-      })
+    },
+    { deep: true },
+  );
+
+  return (
+    api
+      .updateRelease(state.projectId, state.tagName, updatedRelease)
 
       /**
        * Currently, we delete all existing links and then